Before you list something, it's worth knowing what's left once eBay has taken its cut. Enter the selling price, postage, eBay's selling fee % and what the item cost you. The calculator shows your profit in pounds and as a percentage, so you can see straight away whether it's worth listing.
It also lets you add the time it takes to list, as a listing creation labour cost. That's the cost most sellers forget, and on cheap items it can be the difference between a profit and a loss.
UK sellers also have rules like GPSR to think about, and our guide to eBay seller fees explains where each fee comes from.
When you've got more than a few items
Working out prices one at a time gets old quickly. Prolisto's automated pricing applies your margin rules to every listing for you.