Food Cost Percentage: Formula, Benchmarks and How to Lower It

Food cost percentage is the share of your food sales that goes on ingredients. You get it by dividing cost of goods sold by food sales for the same period. Kitchens generally know the formula. Far fewer use the more revealing number beside it: the gap between what your food should have cost and what it did.

This guide gives you the formula, the ranges people quote, and a way to find where the money goes.

How do you calculate food cost percentage?

Divide cost of goods sold by food sales, then multiply by 100. Cost of goods sold is your opening stock, plus purchases, minus closing stock. One operator guide warns that dividing purchases by sales measures what you bought, not what you used.

Here is an illustrative week, with invented figures:

Three habits keep the number honest. Count stock on the same days your sales week starts and ends. Keep food and beverage apart, because they behave differently. And value stock at what you actually paid, not at last year's price.

What is a normal food cost percentage?

There is no single normal, and comparing across concepts is close to meaningless. The same operator guide publishes typical ranges, but they carry no named survey behind them, so treat them as rough orientation:

Why do steakhouses run higher? Because the main ingredient is expensive and guests will not pay a proportional markup. That is not a failure. A restaurant can run a high percentage and still earn well if each plate leaves a lot of cash behind, which is the point of menu engineering.

A percentage points at the leak; only the cash tells you how big it is.

What is the number that actually matters?

The gap between theoretical and actual food cost. Theoretical food cost is what your sales should have cost if every portion matched the recipe, with no waste. Actual is what the stock counts say you used. GloriaFood's explainer gives a simple example: 2,500 of theoretical cost against 12,500 of food sales is 20%, while 3,500 of actual cost on the same sales is 28%. The variance is 8 percentage points.

Apply it to the week above. Imagine your recipe costs say the week's sales should have cost 28% of sales. You ran at 30.6%. The gap is 2.6 points, which on 31,000 of sales is roughly 800 in a single week.

The same operator guide suggests a variance under 2 points is a well-run kitchen and above 5 points signals a systemic leak. That is one publisher's rule of thumb rather than a standard, but it is a sensible way to decide where to look first.

Where does the gap come from?

It comes from a short list of causes, and each has a different fix.

• Waste. Spoilage, trim, plate waste and over-production.
• Portioning. Cooks free-pouring a sauce or cutting a protein heavy.
• Receiving. Short deliveries, wrong weights and substitutions nobody recorded.
• Recording. Staff meals, comps and spills that never reach the system.
• Recipe drift. A cook has changed a dish and the costed recipe has not followed.
• Theft. Real but rarely the biggest cause, so rule out the others first.

Sort them by asking one question of each: is this a menu problem or an execution problem? A recipe that costs more than the sheet says is a menu problem. A cook who plates 10% heavy is an execution problem. The fixes are different.

How do you lower it?

Measure first, then fix the largest leak. A Champions 12.3 study of 114 restaurants in 12 countries (published 2019) found an average saving of 7 for every 1 invested in cutting kitchen food waste, and kitchen waste fell 26% on average within a year. Every site kept its total investment under 20,000 (in the study's currency, US dollars). The methods were plain: a waste inventory, staff involvement and a look at over-production.

A practical order of work:

1. Weigh the bins for a fortnight. A scale and a pen are enough. Two or three dishes or prep tasks usually sit behind most of it. See how to reduce restaurant food waste for a longer method.
2. Compare actual and theoretical weekly. A monthly view hides the week things went wrong.
3. Fix portions with tools. Scoops, ladles, scales and portion cards beat reminders.
4. Re-quote your top ingredients. A small group of items usually makes up most of your spend. Ask two or three suppliers to quote the same specification.
5. Reprice or rework thin plates. Where a plowhorse sells well and earns little, a small price step or a cheaper garnish often beats cutting the main ingredient.

Cutting ingredient quality is the last lever, not the first. Guests notice, and the saving is usually smaller than the sales you lose.

How does a target food cost turn into a price?

Divide the portion cost by your target percentage. A plate that costs 6.30 to make, at a 35% target, prices at 18.00. That works as a floor, and the Katalyst pricing guide makes the same point: it ignores how many cash units each plate earns, so it is a starting line rather than a finish.

This is why the target should come last in a pricing conversation, not first. Work from cash per plate and what guests will pay, then check the percentage as a sense test. Our guide to pricing a menu goes through the other methods.

How often should you count stock?

Weekly for food, and more often for the few items that cost the most. A monthly count gives you a monthly answer, which is too late to catch a bad week. Choose a quiet time, count in the same order each time, and have the person who orders not be the only person who counts.

If weekly counts feel heavy, count the expensive 20% of items weekly and the rest monthly. It is not perfect, but it will catch most of the money.

Why does food cost percentage mislead on its own?

Because it ignores cash, labour and the rest of the cost base. A dish at 20% food cost that earns very little per plate does less for you than one at 40% that earns a lot. Chasing the percentage can push you towards cheap, popular dishes and away from the ones that make money.

It also sits inside a bigger picture. Prime cost, which is cost of goods sold plus total labour, is a better test of the whole kitchen. A 7shifts guide puts a typical overall range at 55% to 65% of sales, with full service at 60% to 65%, and suggests tracking your own 12-week average rather than adopting someone else's. If prime cost is healthy, a high food cost is a choice. If prime cost is high, look at both halves.

For the wider view of what a healthy restaurant keeps, see restaurant profit margins.

Key takeaways

• Food cost percentage is cost of goods sold divided by food sales, using stock counts, not just purchases.
• Published ranges vary by concept and source, so use them as orientation, not a target.
• Track the gap between theoretical and actual food cost every week. That is where the leak shows.
• Measure waste before you fix it, and fix portions with tools rather than reminders.
• Judge dishes by cash earned per plate, and judge the kitchen by prime cost.