Reselling Profit Calculator
Reselling profit is the spread between where you buy and where you sell, minus the marketplace's cut and the shipping you pay on both ends. Thin spreads need volume to matter.
Net profit per unit
$5.75
- Profit margin
- 23.00%
- Platform fee
- $3.25
- Total profit
- $115.00
Values update as you type. This calculator covers the single scenario its formula assumes — see Common Mistakes for what it leaves out.
The formula this calculator uses
Net/unit = Sell - Buy - (Sell x Fee%) - Ship to acquire - Ship to buyer - Other
- Buy
- Cost to acquire one unit
- Sell
- Price the unit sells for
- Fee%
- Marketplace commission on the sale
- Shipping
- Shipping paid to acquire and to deliver
How to check the result by hand
- 1
Work out the platform fee
Multiply the sell price by the marketplace commission rate.
- 2
Add up the shipping
Both the cost of acquiring the item and the cost of sending it to the buyer come off the margin.
- 3
Subtract every cost
From the sell price take the buy cost, the fee, both shipping charges and any other cost.
- 4
Compute the margin
Divide the net profit by the sell price to express it as a percentage.
- 5
Scale to the lot
Multiply the per-unit net profit by the quantity to get the profit on the whole batch.
For worked examples, common mistakes and the limits of this formula, read the full How To Calculate Reselling Profit page.