01
Gross profit is not profit.
GP% is what is left after the cost of the product and nothing else. Wages, rent, utilities, breakages and finance all come out of it afterwards. A 72% GP site can still lose money.

Free tools · margin
Put in what you sell an item for, what it costs you to make, and the calculator gives you the gross profit percentage the way a hospitality P&L actually measures it — on the net, ex-VAT selling price. It also works backwards: tell it the GP you need and it gives you the price that gets you there.
The calculator
Nothing is sent anywhere — the maths runs in your browser and we never see what you type. Every field starts at a deliberately ordinary default rather than a flattering one.
Before you quote the figure at anyone
01
GP% is what is left after the cost of the product and nothing else. Wages, rent, utilities, breakages and finance all come out of it afterwards. A 72% GP site can still lose money.
02
This is theoretical GP — the margin you would make if every portion were exactly to spec and none of it went in the bin. Actual GP measured from stocktake is almost always several points lower, and the gap between the two numbers is the most useful figure in the building.
03
Menu profitability is a weighted average: a 78% GP item nobody orders does less for you than a 62% GP dish that sells forty covers a night. Run your best sellers through this before you run anything else.
Questions
Getting a number you don’t recognise from your own accounts is usually worth a conversation rather than another spreadsheet.
Take VAT out of the selling price, subtract the cost price of the item, then divide what is left by the net selling price and multiply by 100. On a £7.50 pint including 20% VAT, the net price is £6.25; if the liquid costs £2.10 the cash gross profit is £4.15, which is a GP of 66.4%.
Excluding VAT, always. The VAT you charge is never your money — it belongs to HMRC — so including it inflates every margin on the menu by roughly a sixth and makes a site look healthier than it is. Every hospitality P&L reports GP on net sales for this reason.
UK operators commonly budget around 68-72% on food and 72-80% on wet sales, with cocktails higher and premium spirits lower. Those are conventions rather than rules: the number that matters is whether your GP covers your fixed costs at the volume you actually trade, which is a question about your own P&L and not about the sector.
Gross profit is sales minus the cost of the product. Net profit is what remains after every other cost — wages, rent, rates, utilities, marketing, repairs and finance. Hospitality businesses fail with strong GP surprisingly often, because labour and occupancy costs sit between the two figures.
Divide the cost price by one minus the target GP expressed as a decimal, then add VAT back on. A £2.10 cost at a 70% target is £2.10 ÷ 0.30 = £7.00 net, which is £8.40 on the menu at 20% VAT. The calculator on this page does that for you as you change the target.
WHY Hospitality