How to use this calculator
Enter the current price, discount rate, total product plus shipping cost, and fee rate. The result estimates profit before and after the discount and the sales lift needed to break even.
Evaluate an eBay discount before applying it. This calculator shows discounted price, profit after discount, profit loss per order, and the extra orders needed to keep total profit stable.
Enter the current price, discount rate, total product plus shipping cost, and fee rate. The result estimates profit before and after the discount and the sales lift needed to break even.
A discount is only healthy if the extra conversion volume offsets the lower profit per order. Deep discounts on thin-margin items can reduce total profit even when sales rise.
If discounted profit becomes very low or negative, the campaign should be redesigned.
At $60 price, 15% discount, $35 cost, and 13.25% fees, discounted price is $51 and profit drops from about $17.05 to $9.24.
Calculate profit after the discounted price, platform fees, shipping, and product cost. The discount is safe only if profit remains positive and volume can compensate.
Discounts increase profit only when the extra orders generate more total contribution than the profit lost per order.
Multiply the original price by one minus the discount rate, then subtract costs and fees to estimate net profit.
A safe discount depends on margin. High-margin items may handle 10% to 20%, while thin-margin items may need smaller discounts.
Divide original profit by discounted profit to estimate the order multiplier needed to maintain total profit.
| Metric | Use |
|---|---|
| Discounted Price | Final buyer price after discount. |
| Profit Loss | How much profit is lost per order. |
| Required Lift | Extra order growth needed to keep profit stable. |