13.6% is eBay's final value fee for most categories. Some categories differ (for example sneakers, trading cards, guitars, business equipment); check yours on eBay's fee page and change it above.
Where the money goes
How it works
eBay charges the final value fee on the whole order the buyer pays: item price, shipping and sales tax. It adds a per-order fee of $0.40, or $0.30 when the order is $10 or less. A promoted listing fee is charged on the same total. eBay collects the sales tax and passes it to the state, so it is not your money. Profit is what eBay pays you minus your shipping cost and what the item cost you. Margin is profit as a share of the sale price plus shipping charged; markup is profit as a share of what the item cost you.
Selling to buy something new? The upgrade cost calculator nets your old part's resale value against the new one, and is this a good price? shows what similar items list for today.