The sale price is not the profit. Marketplace fees, postage and what you paid all come out of it, and what remains is often a good deal less than the headline figure.
Prices default to 2 September 2026 and can be edited above. For prices that update through the day, and to keep a record of what you own, get the app.
Most resellers track revenue and call it performance. Revenue is the easy number and the least useful one. Profit is sale price, less the platform’s cut, less postage and packaging, less what the piece cost you.
Fees are larger than people remember. eBay takes around 13% on jewellery, Etsy around 6.5% plus listing and payment processing, and every one of them takes a percentage of the postage you charge as well as of the item.
Cost basis is the part most people get wrong. If you bought a box of twelve pieces for one price, the cost of any single piece is its share of that total — not the whole amount, and not a guess.
Return rates belong in the arithmetic too. A category running at one return in ten changes the economics of everything in it, because the postage goes out twice and the piece comes back needing to be photographed and listed again.
Buy and sell precious metals regularly? MyGoldWorth keeps your purchase cost, live melt value, inventory and real profit in one place — so the sums above are done for every piece you own, not one at a time.
Get MyGoldWorthAround 13% of the total including postage for most jewellery categories, plus a payment processing charge. Store subscribers pay less.
Split the total across the pieces by relative value, usually melt value. Each piece then carries a realistic share, and the margin is honest when one of them sells.
Yes, whether you charge for it or absorb it. Free postage is not free; it is a discount you have chosen not to show.