Revised:
All amounts in your own currency. Estimate only, not financial or tax advice.
What the calculator includes
Enter the lot price, shipping, number of items, expected average selling price and sell-through rate, platform or payment fees, VAT or sales tax included in your prices, and the time it takes to list one item. The calculator shows net revenue, total costs, profit, margin, cost per item and the average price you need to break even.
The hidden cost: listing time
Overstock lots contain many different products, and each one needs a name, description, category, photos and price before it can sell. At a few minutes per item, listing a 200-item lot can take a full working week. Put your own minutes per item and hourly cost into the calculator to see how much of the margin goes into typing.
Use estimates honestly
Sell-through and average price are the most uncertain inputs. Check them against your own sales history and be conservative with damaged, seasonal or returned goods. The result is an estimate for planning, not financial or tax advice; your accountant should confirm tax treatment.