How to use this calculator
Enter the item selling price, sourcing cost, total eBay/payment fees, and shipping plus advertising cost. The result shows net profit, margin, cost pressure, and a health score for the listing.
Estimate your eBay net margin after product cost, fees, shipping, packaging, and ad spend. Use it to see whether a listing has enough profit room before discounting, promoting, or ordering more inventory.
Enter the item selling price, sourcing cost, total eBay/payment fees, and shipping plus advertising cost. The result shows net profit, margin, cost pressure, and a health score for the listing.
A higher margin means the listing can absorb fee changes, returns, discounts, and promoted listing costs. A low margin means small cost increases can turn the item unprofitable.
Benchmark guide: 30%+ is strong, 15% to 30% is workable, and below 15% needs cost or price action.
If a product sells for $60 with $25 cost, $8 fees, and $10 shipping plus ads, net profit is $17 and net margin is 28.3%.
Many eBay sellers target at least 20% to 30% net margin after fees, shipping, ads, and packaging. Lower margins can work only with high volume and low return risk.
Subtract product cost, eBay fees, payment fees, shipping, packaging, and advertising from the selling price, then divide net profit by selling price for margin.
A 15% net margin is usually average. It may be acceptable for fast-moving inventory, but it leaves limited room for returns, fee changes, or promoted listings.
Your markup should cover product cost, fees, shipping, ads, returns, and target profit. The correct markup depends on category, demand, and fulfillment cost.
Common causes include underestimated shipping, promoted listing fees, payment fees, packaging costs, returns, and pricing too close to cost.
| Metric | Use |
|---|---|
| Net Margin | Shows real profit strength after all costs. |
| Cost Ratio | Highlights how much revenue is consumed by expenses. |
| Health Score | Combines margin and cost pressure into one action signal. |