How this free tool works
Estimated profit per unit = proposed sale price − supplier cost − fulfillment/shipping − ad cost − marketplace fee percentage of sale price. Margin = profit divided by sale price. The tool ranks alternatives by margin and reports loss-making products.
Worked example
An item sold at 40 with supplier cost 18, shipping 5, ads 4 and 10% marketplace fees has estimated profit 9 and margin 22.5%.
Limitations and data quality
Not live product discovery or trend research. All costs and products are manually entered; forecasts, competition, returns, VAT, chargebacks and supplier reliability are not independently verified. Commercial trend data requires an authorized source.