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WaterfallBridge — Automate Waterfall, Bridge and Contribution Analysis

Explain KPI changes across finance, marketing, e-commerce, operations, and analytics — from margin bridge and price-volume-mix to conversion rate and detailed contribution analysis. See Use Cases →

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Step-by-Step: How to Use WaterfallBridge

Follow along with our detailed walkthrough and master key driver analysis from day one.

Use Case

Do you often encounter similar situations like this?
Boss:

How has our profit margin been doing over the past few quarters?

You:

Sales increased by 10%, but overall profit margin decreased by 7pt.

Boss:

That's not good. Can you give me a breakdown and analysis report of the 7pt profit margin decline? I need to know what specific products and reasons caused this decline. It would be best if you could do a comprehensive analysis by region, product type, channel, or team across different dimensions. You can compare with different time periods like last year, the year before, or our budget. This way we can identify problems promptly and solve them immediately.

You (thinking to yourself):

If it were just revenue analysis, that would be simple enough. But breaking down the 7pt profit margin decline to specific 1000 SKUs and knowing which factors—price, discount rate, cost, etc.—contributed how many pts to the overall decline, that's not an easy task. If we add regional, product type, and channel dimensions, it becomes even more complex. Then comparing with last year, budget, and other data versions—it's almost impossible...

Do you frequently encounter similar needs in your work? Do you spend a full day, or even days or longer (for multi-dimensional analysis) to reach an analytical conclusion? Does this analysis contain a lot of manual estimation, and the final aggregation of all impact factors doesn't accurately equal the 7pt profit margin decline, requiring manual adjustments? Do you always harbor doubts about whether the calculation process is 100% correct?

Please use WaterfallBridge to complete similar analysis in just minutes, getting accurate analytical results through algorithms and decomposing revenue, profit margin changes into the impact factors, different dimensions, and scenario comparisons you desire. This helps you pinpoint problems precisely, take timely action, and improve enterprise competitiveness.

Who Can Use WaterfallBridge

WaterfallBridge is not limited to finance teams. It helps any team explain why a KPI changed, using transparent and traceable Waterfall / Bridge / Contribution / Key Driver Analysis.

It is especially useful when you need to:

  • Explain changes in value metrics such as revenue, profit, cost, spend, or volume
  • Decompose changes in percentage or rate metrics such as margin %, conversion rate, CTR, yield, discount rate, or churn rate
  • Identify the contribution of detailed dimensions such as SKU, product, customer, channel, region, supplier, campaign, or site
  • Produce results that tie out exactly and can be reviewed step by step
A. By Industry / Business Domain
Industry / Domain Typical Roles Common Analysis Questions Core Factors WaterfallBridge Decomposes Unique Value
Finance / FP&A FP&A Manager, Finance Analyst, CFO Office Why did Revenue / Profit / Margin % change vs budget or last year? Price, Volume, Mix, Cost, FX, Structure Bridges both value and rate metrics (e.g. Margin %) with full traceability
Marketing / Advertising Performance Marketing Analyst, Growth Analyst, Marketing Ops Why did CTR, CVR, ROAS, or CAC change? Which campaign or keyword drove the shift? Traffic, Channel Mix, Device Mix, Geography, Campaign, Keyword, Offer Explains rate metric changes and drills down to ad-level dimensions
E-commerce / Retail E-commerce Analyst, Category Manager, Commercial Analyst Why did sales, gross margin %, discount rate, or conversion change? Which SKU / store / channel contributed? Price, Units, Discount, Product Mix, Channel Mix, Freight, Cost Decomposes results to SKU / category / channel / region; handles high-dimensional analysis
Procurement / Supply Chain Procurement Analyst, Supply Chain Analyst, Sourcing Manager Why did spend or unit purchase cost rise? Which supplier / category / plant drove it? Unit Price, Volume, Supplier Mix, Category Mix, FX, Logistics Explains cost rate and procurement structure changes — not just total spend
Manufacturing / Operations Operations Analyst, Plant Controller, Manufacturing Finance Why did unit cost, yield, scrap rate, or gross margin change? Volume, Yield, Scrap, Labor, Overhead, Material Cost, Product Mix Superior for decomposing rate metrics like yield %, scrap %, margin %
SaaS / Subscriptions RevOps, BizOps, Growth Ops, Customer Success Ops Why did trial-to-paid, retention, churn, ARPU, or NRR change? Customer Mix, Plan Mix, Price, Volume, Cohort, Region, Channel Explains subscription and conversion KPI changes with structural attribution
Sales / Commercial Ops Sales Ops, Business Analyst, Commercial Excellence Why did win rate, average selling price, customer margin, or regional sales shift? Price, Volume, Customer Mix, Product Mix, Region, Sales Team Drills from total sales to customer / product / region contribution
Product / Data Analytics Product Analyst, BI Analyst, Data Analyst Why did engagement, activation, conversion, or retention change? User Mix, Channel Mix, Version Mix, Region, Device, Feature Adoption Gives more explainable answers to "why did the KPI move" than a dashboard alone
Customer Service / Support Ops Service Ops, Support Analyst, Call Center Analyst Why did SLA, resolution rate, complaint rate, or ticket efficiency change? Ticket Mix, Channel Mix, Team Mix, Region, Product Type Separates structural factors from execution factors in service metrics
Healthcare / Education / Public Sector Operations Analyst, Planning Analyst, Program Manager Why did operational or performance KPIs shift? Volume, Mix, Resource Allocation, Region, Service Type Applicable to any scenario requiring clear explanation of complex KPI changes
B. By Role / User
Role What They Care About Value WaterfallBridge Delivers
FP&A / Finance Analyst Budget vs Actual, Forecast vs Actual, YoY variance explanation Produces fully reconciled bridges and supports complex metrics like Margin %
CFO / Finance Lead Management reporting, result attribution, transparent key drivers Clear, reviewable, and auditable path for explaining performance changes
Marketing Analyst CTR, CVR, ROAS, campaign performance Contribution analysis from total result to campaign / keyword / channel level
E-commerce Analyst SKU, discount, channel, category profitability Drills from total gross margin % down to SKU / Category / Store / Channel
Procurement Analyst Spend variance, supplier impact, unit cost changes Explains cost drivers and procurement structure — beyond just showing a report
Supply Chain Analyst Cost, logistics, supplier switching, structural shifts Analyzes how structural changes affect total cost and efficiency
Operations Analyst Efficiency, service levels, capacity, yield changes Decomposes operational result changes into actionable drivers
Sales Ops / Commercial Analyst Region, customer, product, and price drivers Identifies which customers / regions / products are truly driving results
BI / Data Analyst The "why" behind dashboard metrics Provides structured KPI variance explanation beyond monitoring and alerting
Pricing Analyst Impact of price changes, discounts, and mix shifts on profit Clearly isolates price, mix, discount, and cost effects
C. By Analysis Scenario / Task
Analysis Scenario Common Metrics Applicable Example
Budget vs Actual Revenue, Profit, Margin %, Cost Explain the gap between actual results and budget
Forecast vs Actual Sales, GM %, Opex, Conversion Rate Identify where and why the forecast deviated
YoY / MoM / WoW Variance Revenue, Units, Spend, KPI rates Compare drivers of change across periods
Price–Volume–Mix Analysis Revenue, Gross Profit, Margin % Decompose price, volume, and mix impact on results
Margin % Driver Analysis GM %, CM %, EBITDA % Explain percentage metric changes — not just the dollar amount
Contribution Analysis SKU, Customer, Region, Channel, Campaign Find out who is pulling up or dragging down overall results
Channel / Region Bridge Sales, Conversion, Spend, Profitability Compare performance changes across channels and regions
Product / SKU Analysis Margin, Discount, Units, Mix Understand how product mix changes affect overall KPIs
Supplier / Procurement Analysis Unit Cost, Spend, Landed Cost Analyze supplier and procurement structure impact on cost
Operational KPI Analysis Yield, Scrap, SLA, Resolution Rate Explain operational efficiency or service metric changes
Marketing KPI Decomposition CTR, CVR, CPC, ROAS Explain ad performance and traffic quality changes
SaaS KPI Bridge Retention, Churn, ARPU, Trial-to-Paid Analyze subscription and customer structure changes
D. By Metric Type
① Value Metrics (Absolute)
  • Revenue
  • Profit
  • Cost
  • Spend
  • Units / Volume
  • Headcount
  • Inventory
② Rate / Percentage Metrics
  • Margin % / GM % / CM %
  • Conversion Rate
  • Click-Through Rate (CTR)
  • Engagement Rate
  • Discount Rate
  • Yield % / Scrap Rate
  • Retention Rate / Churn Rate
  • On-time Delivery Rate
③ Detailed Contribution Dimensions
  • SKU / Product / Category / Brand
  • Customer / Account
  • Channel / Store
  • Campaign / Keyword
  • Country / Region / Site
  • Supplier / Vendor
  • Plant / Factory / Team
E. Why WaterfallBridge Works Across Industries
Transparent

Every step of the decomposition is visible and traceable — no black box.

Exact Tie-Out

The sum of all contributions always matches the total KPI change — no manual adjustment needed.

Beyond Simple Waterfall Charts

Not just a chart — a full bridge logic for driver and contribution analysis.

Works for Percentage Metrics

Especially powerful for Margin %, Conversion Rate, CTR, Yield %, and other ratio-based KPIs.

Drill Down to Detail

Analyze the contribution of individual SKUs, customers, channels, regions, suppliers, and campaigns.

Built for Excel

Practical for teams that need fast answers, management-ready outputs, and a familiar workflow.

How It Works

In practice, breaking down the difference between two results in absolute value terms is usually relatively straightforward. For example, if total Revenue increases from 1,000 to 1,200, the change of +200 can usually be decomposed directly into drivers such as Volume, Price, Product Mix, FX, or other factors. WaterfallBridge can handle this type of analysis very effectively and conveniently.

However, when the difference is expressed as a percentage metric—such as Margin %—driver decomposition and contribution analysis become much more difficult. The reason is that percentage metrics are not additive, and their changes are often affected by weighting and mix effects.

For that reason, the following example focuses on analyzing the change in Margin %, showing how to decompose the variance by driver and calculate the contribution of each factor step by step.

At the same time, WaterfallBridge can also calculate contribution at the lowest level of detail within each factor—for example, at the SKU level—so users can trace not only which high-level driver changed the result, but also which underlying items contributed to that change.

In summary, WaterfallBridge is designed to efficiently handle contribution analysis for both absolute value metrics and percentage metrics across different business contexts and analytical scenarios.

I. Program Principle Introduction

The following example walks through a two-product scenario to illustrate how each driver is replaced step by step and how the contributions tie out exactly.

Core principle

When we analyze changes in overall Margin %, we cannot simply add up the Margin% changes of individual products, countries, or regions, because total Margin% is essentially:

Total Margin % = Total Profit / Total Revenue

It is a result formed based on revenue weighting, not a simple sum of sub-item percentages.

Therefore, one of the most reliable methods—and one that will always tie out—is:

Stepwise replacement (one-variable-at-a-time substitution)

That means:

  • Start from the old scenario (Forecast / Baseline)
  • Replace only one variable with its new value (Actual) each time, while keeping all other variables unchanged
  • Recalculate overall Margin % after each replacement
  • The change versus the previous step is that variable's contribution
  • Continue until all variables have been replaced with Actual

This ensures that:

Sum of contributions = Margin%(Actual) − Margin%(Forecast)

In addition, at the product detail level, if you update Units / Volume from Forecast to Actual, you are usually also updating the sales structure across products at the same time, so mix effect is often already embedded in the Volume step, and you do not necessarily need a separate "Mix" bar.

II. Case Setup

To keep the example simple and clear, we use two products:

  • Product A: naturally high margin
  • Product B: naturally low margin

1) Forecast (Baseline)

ProductUnitsUnit PriceUnit CostRevenueProfitMargin %
A10010.06.01,00040040.0%
B2008.07.01,60020012.5%
Total3002,60060023.08%
Formulas:
Revenue = Units × Unit Price
Profit = Units × (Unit Price − Unit Cost)
Total Margin % = Total Profit / Total Revenue = 600 / 2,600 = 23.08%

2) Actual (Final result)

ProductUnitsUnit PriceUnit CostRevenueProfitMargin %
A1409.56.21,33046234.74%
B1708.46.81,42827219.05%
Total3102,75873426.61%

So the total change is: 26.61% − 23.08% = +3.54pp

III. Stepwise Replacement Breakdown Process

Here we use the following sequence:

Volume (incl. mix) Price Cost

This sequence works very well for explaining your program, because it directly shows:

  • First update volume and structural changes
  • Then update price changes
  • Finally update cost changes
Step 0 Baseline — Start from Forecast
ProductUnitsUnit PriceUnit CostRevenueProfitMargin %
A10010.06.01,00040040.0%
B2008.07.01,60020012.5%
Total3002,60060023.08%
Step 1 Replace Volume only (including mix)

In this step, only Units are replaced from Forecast to Actual, while Price and Cost remain at Forecast values.

ProductUnitsUnit PriceUnit CostRevenueProfitMargin %
A14010.06.01,40056040.0%
B1708.07.01,36017012.5%
Total3102,76073026.45%

Total Margin % changes from 23.08% to 26.45%, therefore:

Volume contribution = +3.37pp

Why does this step already include mix?

Because A is a high-margin product, while B is a low-margin product.
Compared with Forecast, Actual shows:

  • A's units increase from 100 to 140
  • B's units decrease from 200 to 170

This means the overall sales structure shifts toward higher-margin Product A.
So this step reflects not only "selling more or less," but also "what products were sold." That is exactly why, in this kind of detailed model, mix effect is already reflected in the volume step.

Step 2 Replace Price

In this step, based on Step 1, Unit Price is also replaced with Actual, while Cost remains at Forecast values.

ProductUnitsUnit PriceUnit CostRevenueProfitMargin %
A1409.56.01,33049036.84%
B1708.47.01,42823816.67%
Total3102,75872826.40%

Total Margin % changes from 26.45% to 26.40%, therefore:

Price contribution = −0.05pp

Intuitive explanation

Although B's price increased, A's price dropped from 10.0 to 9.5, and A has the larger volume, so overall the price factor has a slightly negative impact on total Margin%.
Step 3 Replace Cost — fully reaches Actual state

Finally, Unit Cost is also replaced with Actual. This fully reaches the Actual state.

ProductUnitsUnit PriceUnit CostRevenueProfitMargin %
A1409.56.21,33046234.74%
B1708.46.81,42827219.05%
Total3102,75873426.61%

Total Margin % changes from 26.40% to 26.61%, therefore:

Cost contribution = +0.22pp

Intuitive explanation

A's unit cost increased, but B's unit cost decreased, and B's improvement was more favorable to the overall result, so the cost factor ultimately made a positive contribution.

IV. Final Bridge Result

StepMargin %Contribution
Forecast baseline23.08%
After Volume (incl. mix)26.45%+3.37pp
After Price26.40%−0.05pp
After Cost26.61%+0.22pp
Total change26.61% − 23.08%+3.54pp

Verification:

+3.37pp − 0.05pp + 0.22pp = +3.54pp

This matches the total change exactly.
That is precisely the value of stepwise replacement: each step is traceable, and the total will always reconcile.

Instructions

Using the WaterfallBridge tool requires Excel 2016 or higher, preferably the latest Microsoft 365 version. Older versions may cause the program to malfunction.

The following instructions use a "Electronics Stores" virtual dataset to demonstrate how to use the WaterfallBridge tool to automatically generate Bridge analysis and identify key driving factors.

Download Excel Example
1 Initial Panel Operations

The initial panel displays two buttons: "New Bridge File" and "Open Existing Bridge File"

Screenshot after clicking New Bridge File

1.1 Click "New Bridge File" button - Generates a new Excel file containing a new "Data" worksheet. Please enter the corresponding data in the "Data" worksheet for further analysis.

1.2 Click "Open Existing Bridge File" button - Select a previously used Excel file. This file should contain the relevant data and have Data Types configured.

2 Data Worksheet

In the Data worksheet starting from column B, enter data types in the first row, field names in the second row, and data in all rows from the third row onwards. Column A contains auto-generated identifiers for the first three rows that need data input. Column A itself has no impact on data and analysis.

Data Worksheet
2.1 Data Type Selection

In the first row of the "Data" worksheet, use the generated dropdown menu starting from column B to select the data type. The type depends on the meaning the data needs to represent. The program will automatically analyze based on the data type.

Data types are divided into 5 categories: Dimension, Key, SumY, SumN, Result. Each field must be defined with one data type, which can be selected using the dropdown menu.

Select Data Type

Now using our simulated supermarket data as an example, let's explain the meaning of each data type. Each type is defined as follows:

2.1.1 Dimension
Represents data dimensions such as date, time, region, and other data dimensions and facets. These fields do not participate in calculations and are only used to filter data.
Select Data Type
2.1.2 Key
Key is a type of Dimension, and only one field can be marked as Key. The field marked as Key will serve as the minimum granularity for analysis and calculate the impact of each factor on the final result (Result) within this dimension. You can change other dimensions to Key fields for analysis at different granularities.

For example: If "Product Name" is selected as Key, the tool will calculate the impact of each variable's change on the final result (Result) within this "Product Name" dimension.
Select Data Type
2.1.3 SumY
Data in the same column from different rows can be added together and the sum is meaningful. Whether SumY or SumN is correctly set will affect the final analysis results.

For example: Quantity of different products in each row can be summed, and the total represents the total quantity of goods. Therefore, the Type of Quantity can be set to SumY.

SumY can contain direct numerical values or use formulas to calculate values through other fields. However, formulas can only use Excel's basic arithmetic operators: addition (+), subtraction (-), multiplication (*), division (/), left parenthesis "(", and right parenthesis ")". Formula Usage Guidelines
Select Data Type
2.1.4 SumN
Data in the same column from different rows cannot be added together, and the sum would be meaningless. Whether SumY or SumN is correctly set will affect the final analysis results.

For example: Different products have different Prices. To calculate the average Price of all products, you cannot directly add Product A's Price plus Product B's Price to get the overall Price. Therefore, the Type of Price can be set to SumN.

SumN can contain direct numerical values or use formulas to calculate values through other fields. However, formulas can only use Excel's basic arithmetic operators: addition (+), subtraction (-), multiplication (*), division (/), left parenthesis "(", and right parenthesis ")". Formula Usage Guidelines
Select Data Type
2.1.5 Result
Only one field can be selected as Result to serve as the data result we need to analyze. The Result column must contain formulas that calculate the Result field through other variables.

For example: If the Result field contains sales, then the cell should input = Price * Quantity. Or if it's margin%, then the cell should input = profit / revenue.

The formula in Result is crucial information that the tool uses to associate variables with results and analysis logic dependencies. Please ensure that each Result cell in every row contains a formula that can calculate the Result. The formula should be concise and clear. Result will analyze the impact of each variable in the formula on the Result, while variables not in the formula are not within the analysis scope. The Result formula should contain at least one field with Data Type SumY to enable aggregated analysis of data from different rows.

Result formulas can only use Excel's basic arithmetic operators: addition (+), subtraction (-), multiplication (*), division (/), left parenthesis "(", and right parenthesis ")". Formula Usage Guidelines
Select Data Type
2.2 Field Name Setup

In the second row of the "Data" worksheet starting from column B to the right, enter field names. The meaning of the field names should correspond to the data types in the first row. Field names cannot be duplicated.

Select Data Type
2.3 Data Input

In the "Data" worksheet starting from the third row in column B, input specific data downwards.

Select Data Type
3 Bridge Button Operations

After clicking "New Bridge File" or "Open Existing Bridge File" to open a file, blue buttons New Bridge and Refresh Bridge will appear on the panel.

Screenshot after clicking New Bridge File

3.1 New Bridge button - Generates new dropdown menus and Bridge worksheets and other analysis frameworks Baselined on the Data worksheet data for subsequent data analysis. (Note: Related worksheets such as Bridge worksheets and corresponding data in the original workbook will be deleted.) If there are any changes to the Data worksheet data, you must first click the "New Bridge" button to generate a new analysis framework, then: 1. Make selections in the new Baseline and Comparison dropdown menus; 2. Click the "Refresh Bridge" button to regenerate the required Bridge charts and Contribution Analysis.

3.2 Refresh Bridge button - After selecting options in the Baseline and Comparison dropdown menus according to analysis needs, click the "Refresh Bridge" button to generate the required Bridge charts and Contribution Analysis. Missing data or worksheets will trigger prompts; it's recommended to click New Bridge to regenerate a new Bridge.

4 Dropdown Menu

The dropdown menu is divided into two areas: Baseline and Comparison

The fields in Baseline and Comparison dropdown menus contain exactly the same options. Users can filter which options serve as Baseline data and which serve as Comparison data in the dropdown menus, using these as the comparison and analysis data for both ends of the Bridge. Note: Initially, by default, all fields in the Baseline and Comparison dropdown menus are selected, so Baseline and Comparison get exactly the same dataset, resulting in a Bridge with no differences.

Select Data Type

4.1 Baseline dropdown menu - Select the baseline data for comparison analysis. For example, we often use data from certain years as the comparison baseline, so here we select 2023.

Select Data Type

4.2 Comparison dropdown menu - Select the Comparison data for comparison analysis. For example, here we select 2024 as the year of interest to compare with 2023.

Select Data Type
5 Bridge Worksheet

The Bridge worksheet displays the final analysis results, including Bridge charts and Contribution Analysis tables.

Select Data Type

5.1 Bridge Data Source - Starting from cell B3 in the upper left corner, field names and data will appear. This is the data used to generate Bridge charts.

Select Data Type

5.2 Bridge Chart - Displays the Bridge analyzed and obtained after program execution. The blue bar on the left is Baseline, the middle shows the impact contributed by each variable, and the right bar is Comparison.

Select Data Type

5.3 Contribution Analysis Table - Directly below the Bridge chart, a Contribution Analysis table will be displayed, showing the contribution of each Item in the Key field to overall changes under different factors.

Select Data Type

Through the Bridge Chart and Contribution Analysis Table, you can quickly identify the main Items (SKUs) affecting changes and the factors causing changes (price? cost? or quantity mix?).


You can analyze different dimensions and different result data by modifying 2.1 Data Type Selection to choose which field is Key and which field is Result. You can also use the dropdown menus to filter which data serves as Baseline and Comparison, then click Refresh Bridge to generate updated Bridge charts and Contribution Analysis tables for analyzing actual business situations and proposing improvement suggestions.

6. SumY and SumN Calculation Rules

In the first row Data Type of the Data worksheet, numerical values are divided into two types: SumY and SumN, and are used in formulas in the Result column. To correctly analyze the data, we define some calculation rules for SumY and SumN:

6.1 Addition (Subtraction)

SumY + SumY = SumY

SumY + SumN (will show error)

SumN + SumN = SumN

6.2 Multiplication

SumY * SumY = SumY

SumY * SumN = SumY

SumN * SumN = SumN

6.3 Division

SumY / SumY = SumN

SumY / SumN = SumY

SumN / SumY = SumN

SumN / SumN = SumN

6.4 How to Use Formulas
Formula Usage Guidelines: Each SumY, SumN, Result cell formula can only use other data from the same row in the same worksheet. Formulas cannot include cross-row data. Formulas can only use Excel's basic arithmetic operators: addition (+), subtraction (-), multiplication (*), division (/), left parenthesis "(", and right parenthesis ")".

Use Same Formula for Each Column: The program will automatically copy the formula from the fourth row to the entire column after removing fixed cell reference symbols "$" to ensure all formulas in each column are identical.

6.4.1 In formulas, if parentheses are included, calculations inside parentheses are performed first according to the order of operations, and the result is used as a value to continue calculations using the above rules.

Example: (SumY + SumY) * SumN

Step 1: SumY + SumY = SumY

Step 2: SumY * SumN = SumY

Final result type: SumY

6.4.2 If the Result column formula references other cells that also contain formulas, the analysis will merge all nested formulas into one formula for analysis.

Example:

Column E formula: =B*C (Total Cost = Quantity * Unit Cost)

Column F Result formula: =D-E (Profit = Revenue - Total Cost)

After merging: The program will analyze =D-(B*C)

6.4.3 The program will automatically reorder variables and apply the distributive property based on formula structure for better data analysis.

Original formula: =SumY*(SumN1 + SumN2)

After processing: =SumY*SumN1 + SumY*SumN2

This helps analyze the individual contributions of SumY, SumN1, and SumN2 more clearly.

7. Process Worksheet

The Process worksheet contains the logic and algorithms for generating Bridge charts and data. You can intuitively see how these analysis results are calculated step by step, avoiding black box and inexplicable phenomena.

Bridge Analysis Calculation Logic and Principles

7.1 Basic Calculation Steps

All variables are based on Baseline initial values. Each step changes one variable to the Comparison value and calculates the impact on each Key Item.

Example: Product A sales analysis

Baseline: Price=10, Quantity=100, Sales=1000

Comparison: Price=12, Quantity=80, Sales=960

Step 1: Only change Price: 10→12, Quantity remains 100, Sales=1200

Step 2: Then change Quantity: Price=12, Quantity=100→80, Sales=960

7.2 Summary Impact Calculation

Calculate the impact of each variable change on the summary

Price Impact: 1200 - 1000 = +200

Quantity Impact: 960 - 1200 = -240

Total Change: +200 + (-240) = -40

Verification: 960 - 1000 = -40 ✓

7.3 Bridge Chart Generation

After steps 7.1 to 7.2, replacing all variables from Baseline values to Comparison values, we obtain the impact of each influencing factor needed for the Bridge chart.

7.4 Contribution Analysis

In the Contribution calculation table, we calculate the impact of each Key on the overall change under each factor variation.

Overall Price Impact: +500

Product A Contribution: +200 (40%)

Product B Contribution: +180 (36%)

Product C Contribution: +120 (24%)

7.5 Added Data and Removed Data

Added Data represents newly added data compared to Baseline data (existing in Comparison data). Removed Data represents data deleted from Baseline data (not existing in Comparison). These two types of data generally need to be separated from other factor analysis first.

Scenario: Product mix change analysis

Baseline Data: Products A, B, C

Comparison Data: Products A, B, D (added D, removed C)

Added Data: Product D's contribution

Removed Data: Product C's impact (negative contribution)

These changes will be displayed separately, not mixed with price, quantity and other factors.

8. Other Worksheets

For the correct operation of the program, some other worksheets will be generated but hidden. Please do not modify these worksheets.

9. Data Security Assurance

All data exists only in local Excel files. The program runs only locally with no network communication during the analysis process.

10. Transparent & Explainable Analysis

Reject the ambiguous conclusions and inexplicability of AI analysis. The analysis calculation process is completely transparent and explainable.

📊

Process Worksheet Transparency

Contains the logic and algorithms for generating Bridge charts and data. Every calculation step can be traced and verified.

Traditional Black Box Analysis:

❌ "AI model shows 7pt profit margin decline"

❌ Cannot explain specific calculation process

❌ Cannot verify result accuracy

Bridge Transparent Analysis:

✅ "Price factor: -3pt, Cost factor: -2pt, Quantity factor: -2pt"

✅ Every calculation step visible in Process worksheet

✅ All formulas and logic completely verifiable

🔒

Local Data Security

Zero network communication, all data processing completed locally, ensuring absolute enterprise data security.

Data Security Guarantee:

✅ Data never leaves local computer

✅ No need to upload to cloud servers

✅ No network connection required

✅ Complies with enterprise data security policies

✅ Avoids data breach risks

🎯

Precise Mathematical Calculation

Based on rigorous mathematical formulas, ensuring accuracy and reliability of analysis results.

Traditional Estimation Analysis:

❌ Manual estimation with potential errors

❌ Cannot precisely quantify impact of each factor

❌ Aggregated results require manual adjustment

Bridge Precise Calculation:

✅ Mathematical formulas guarantee 100% accuracy

✅ Each factor's contribution precise to decimal places

✅ Totals automatically balance, no adjustment needed

Efficient Analysis

Complete complex analysis that traditionally takes days in just minutes, dramatically improving work efficiency.

📈

Multi-dimensional Analysis

Support in-depth driving factor analysis by product, region, time, and other dimensions.

🔧

Flexible Configuration

Adjust analysis dimensions and comparison scenarios anytime to meet various business analysis needs.