For savvy Joyagoo buyers, data is the key to identifying top-tier sellers. Beyond star ratings and reviews, analyzing Quality Control (QC) Pass Rates
Seller performance can vary significantly depending on the product type. A seller excelling in electronics may struggle with textiles. By breaking down QC data, you can: Begin by creating a structured data table. Here’s an essential column setup for comparing multiple sellers and categories: Tip: Use the formula Use PivotTables or filters to view all sellers' pass rates for a single category (e.g., "Bluetooth Earphones"). This instantly reveals the top performers for your product of interest. Add a "Month/Quarter" column to track if a seller's quality in a category is improving, stable, or declining. A consistent downward trend is a critical warning sign. A 100% pass rate on 50 units is less indicative than a 95% rate on 2000 units. Prioritize sellers with strong rates over high inspection volumes for greater confidence. Create bar charts to compare pass rates across categories for one seller, or clustered column charts to compare multiple sellers side-by-side for a key category. Visuals make patterns and outliers immediately obvious. Transforming raw QC data into a structured spreadsheet analysis moves your sourcing strategy from guesswork to data-driven decision-making. By systematically analyzing pass rates across categories, you can build a reliable, high-quality supplier portfolio
Start with the data you have from order histories, seller disclosures, or inspection reports. Even basic analysis will give you a significant competitive edge in choosing the right partners for your business.Why Analyze QC Pass Rates by Category?
Structuring Your Spreadsheet for Analysis
Seller Name
Product Category
# Units Inspected
# Units Passed
QC Pass Rate
Notes / Key Defects
Supplier_A
Bluetooth Earphones
500
485
97.0%
Minor battery issues
Supplier_A
Phone Cases
800
720
90.0%
Fitment variations
Supplier_B
Bluetooth Earphones
600
588
98.0%
Consistent performance
QC Pass Rate = (# Units Passed / # Units Inspected) * 100Key Analytical Techniques
1. Category-Wise Comparison
2. Trend Analysis Over Time
3. Volume-Weighted Scoring
4. Visualizing with Charts
Empowering Your Buying Strategy
Joyagoo Spreadsheet: A Buyer's Guide to Analyzing QC Pass Rates
2026-02-07