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Practical guides
Minimum resale price: how to calculate it
The minimum resale price is the break-even point: below it you sell at a loss. Minimum price = (purchase cost + shipping + other costs) ÷ (1 − fee %).
Updated October 4, 2026 · by Kharonte Studio
The formulas
- Net profit = sale price − purchase − shipping − fee
- ROI = net profit ÷ purchase cost × 100
- Margin = net profit ÷ sale price × 100
Example
| Item | Value |
|---|---|
| Purchase | €25.00 |
| Shipping | €4.50 |
| Fee (10% of €60) | €6.00 |
| Sale price | €60.00 |
| Net profit | €24.50 |
| ROI | 98% |
| Margin | 40.8% |
| Minimum price (break-even) | €32.78 |
Illustrative example: the 10% fee is a made-up value.
Break-even: (25 + 4.50) ÷ (1 − 0.10) = €32.78. Below this price you lose money.
Fees change
Each platform has different rules: some charge the seller a percentage, others charge the buyer. Always check the current terms before setting your price.
Frequently asked questions
How do you calculate the break-even point?
Add purchase cost, shipping and other costs, then divide by 1 minus the fee as a decimal.
What is the difference between ROI and margin?
ROI is measured against purchase cost, margin against the sale price.
Should I include my time?
For a realistic result, yes: you can add it to the other costs.