Why tracking profit per item is the most important metric

Most Vinted resellers know their revenue. "I made £800 this month." But revenue is not profit. If you spent £600 on stock, £40 on packaging and £20 on postage, the month made £140, not £800. And if you count the hours spent sourcing, listing and posting, the real figure is lower still.

The true cost of an item

Every item you sell has costs that eat into the sale:

• Cost of goods: what you paid for it
• Postage in: what it cost to get the stock to you
• Postage out, where you cover it to stay competitive
• Fees, on the platforms that charge them
• Extras: packaging, a repair, a bump you paid for
• Your time: sourcing, photographing, writing, posting, answering messages

Add those up and a £20 sale might have cost £15 to deliver. That is £5 of profit, not £20.

Why per-item profit beats monthly profit

Monthly profit tells you whether the business is working. Per-item profit tells you which parts are working. If you sell fifty items a month at an average of £4 each, you make £200. If you can see that one brand makes you £12 an item while another makes £1, you know what to buy more of next weekend.

Without it you are flying blind, and a good revenue month can hide a category that quietly loses money.

How Vintify works it out

One formula, everywhere: sold price, less cost, less postage in, less extra costs, less fees, less postage out. Every figure is whole pence, so the pennies add back up to what you paid, and a cost nobody has entered shows as a dash rather than being counted as zero.

Your Vinted and eBay sales arrive on their own every hour, the cost you logged when you bought the item stays with it, and Analytics cuts the result by brand, category, platform, size, colour and source, with "buy more of" verdicts once there are enough sales to say so.

The 80/20 of reselling

In most reselling businesses a small share of items makes most of the profit. Per-item tracking shows which ones, so you can double down on what works and stop spending weekends on what does not. Hobbies track revenue. Businesses track profit.