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Optimizing Your Marketplace: How to Rank Sellers by QC Performance Using the KAKOBUY Spreadsheet

2025-12-02

In the dynamic world of e-commerce, maintaining high-quality supply chains is paramount. For platforms and buyers using KAKOBUY, effectively evaluating and ranking sellers ensures consistent product quality, reliable delivery, and superior customer satisfaction. This guide outlines a systematic method to rank sellers using a dedicated KAKOBUY spreadsheet by assigning weighted scores to key performance indicators (KPIs).

The Core Performance Pillars

Our ranking model is built on three critical pillars of seller performance. Each pillar is measurable and directly impacts the overall buyer experience.

  • Inspection Success Rate (Quality):
  • Communication Speed (Responsiveness):
  • Delivery Punctuality (Reliability):

Building the Ranking Spreadsheet: A Step-by-Step Guide

Step 1: Data Collection & Sheet Setup

Create a spreadsheet with the following columns for each seller:

Seller ID/Name Inspection Pass Rate (%) Avg. Response Time (Hours) On-Time Delivery Rate (%) Weighted Score Performance Rank
Seller_A 95 2.5 98 To be calculated To be calculated
Seller_B 82 12.0 85 To be calculated To be calculated

Step 2: Assigning Weights & Normalizing Scores

Not all KPIs are equally important. Assign a weight to each pillar based on your business priorities. For example:

  • Inspection Success Rate:50% (0.5)
  • Communication Speed:20% (0.2)
  • Delivery Punctuality:30% (0.3)

Since a lower response time is better, we must invert

Step 3: Calculating the Weighted Score

Use the following formula for each seller in your spreadsheet's Weighted Score

Weighted Score Formula:
(Inspection Rate * 0.5) + ((1 / Avg Response Time) * Max_Response_Time * 0.2) + (On-Time Delivery Rate * 0.3)

Simplified Practical Formula (using normalized response score):
(Inspection%)*0.5 + ((120 - Min(Response_Time_Hrs, 120))/120*100)*0.2 + (Delivery%)*0.3
*This example caps response time at 120 hours for a fair 0-100 scale.

Step 4: Ranking the Sellers

Once the Weighted Score is calculated for all sellers, use the spreadsheet's RANK.EQ

Interpreting the Results & Taking Action

The final ranked list provides a clear, data-driven hierarchy of sellers.

  • Top Tier (e.g., Score > 90):
  • Middle Tier (e.g., Score 70-90):
  • Lower Tier (e.g., Score < 70):

Conclusion

By implementing this structured weighted scoring system within the KAKOBUY

Pro Tip: