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CNFANS Guide: Automate Seller Ratings with Spreadsheet Formulas

2026-03-10

Manually tracking supplier performance is time-consuming and error-prone. This guide shows you how to create an auto-calculating performance dashboard using simple spreadsheet formulas, focusing on ReliabilityRefund Ratios.

The Core Metrics: Defining Your Formula

We will calculate a single, weighted Performance Score

  • Seller Name
  • Orders Fulfilled On Time
  • Total Orders
  • Refund Amount
  • Total Sales Volume

Step 1: Calculate Individual Ratios

Create two new columns:

Reliability Ratio

= (Orders Fulfilled On Time / Total Orders) * 100
Example: =B2/C2*100

Refund Ratio

= (1 - (Refund Amount / Total Sales Volume)) * 100
Example: =(1-(D2/E2))*100
Note: A lower refund percentage yields a higher score.

Step 2: Create the Weighted Performance Score

Combine the ratios into a final score. We'll weight Reliability at 60% and Refund Ratio at 40%, as timely fulfillment is often a primary concern.

Master Formula: Auto-Calculating Performance Score

= (Reliability_Ratio * 0.6) + (Refund_Ratio * 0.4)
Example with cell references: =(F2*0.6)+(G2*0.4)

This formula outputs a score from 0-100. You can now sort sellers by this score.

Step 3: Build a Dynamic Dashboard (Optional)

Use the VLOOKUPXLOOKUP

=XLOOKUP(MAX(H:H), H:H, A:A)
Finds the name of the seller with the highest Performance Score in column H.

Pro Tips for CNFANS Users

  • Format as Percentage:
  • Freeze Header Rows:
  • Use Conditional Formatting:
  • Automate Data Input:Total OrdersRefund Amount

Conclusion

By setting up this automated scoring system, you transform raw transactional data into actionable seller intelligence. This data-driven approach