Restaurant food cost percentage: formula, example, and how to lower it

Food cost percentage is the share of every food dollar that goes back out to pay for the ingredients. At 30%, each $10 dish uses $3 of food on average, which leaves $7 to cover labor, rent and everything else.

It is half of your prime cost (food plus labor), and the half that moves fastest. Supplier prices change every week, and so do portioning habits and waste. A two-point rise is hard to see on a busy night, but on $50,000 a month of food sales it is $1,000 a month.

1. Count your food inventory at the start and end of the period, valued at what you paid.

2. Work out the cost of food sold:

3. Divide by food sales for the same period:

Why not just use purchases? Because what you buy and what you use are rarely the same in any one month. A big order on the last day makes this month look bad and next month look great. Counting inventory evens that out.

Here is one month at an example restaurant with $50,000 in food sales.

At 32.4%, this example restaurant is inside the usual range. The useful question is whether that is what its recipes say it should be. If the recipe costs add up to 29%, about 3.4 points of food sales are going somewhere: waste, over-portioning, missed charges or theft. The food waste gap calculator works out that gap in dollars.

The same idea works for a single dish. Add up the cost of every ingredient in one portion, using the recipe and current supplier prices. That is the plate cost.

Don’t price every dish to the same percentage. A steak may run a high food cost but still earn more dollars per plate than a cheap pasta. What pays the bills is the dollars each dish earns and how many you sell. The Menu Profit Matrix sorts dishes by both.

Many restaurants run at about 28–35% of food sales. Where you should sit depends on what you sell and how you serve it:

• Menus built on expensive proteins or seafood tend to sit higher.
• Pizza, pasta and other flour- and grain-based menus tend to sit lower.
• Scratch cooking can lower food cost but needs more labor. Pre-made products do the opposite.

So judge food cost together with labor, as prime cost, and against your own recipe costs. The industry benchmarks page shows our estimates for different types of restaurant.

1. Supplier prices went up and menu prices didn’t. Compare this month’s invoices with your recipe costs.
2. Invoices don’t match the order. Short deliveries, substitutions and prices above what you agreed.
3. Portions are drifting. An extra half-ounce of protein on every plate adds up fast.
4. Waste and spoilage. Over-ordering, poor rotation (first in, first out) and over-prepping for slow days.
5. Unrecorded comps, staff meals and mistakes. Food leaves the kitchen with no sale against it.
6. Theft. Back door, receiving and closing time are the usual weak spots.
7. Your sales mix shifted toward dishes with a higher food cost.
8. Recipe costs are out of date, so your target is wrong, not your kitchen.
9. The count itself is off: missed storage areas, wrong units or a different counter each time.

The operations checklist covers receiving, storage and prep routines that close most of these.

• Cost every recipe, and re-cost the top sellers whenever a key ingredient price changes.
• Portion with scales, scoops and ladles. Show plating photos on the line.
• Check every delivery against the order and the agreed price before signing.
• Order to a par level based on forecast sales, not habit.
• Log waste on a sheet by the bin. What gets written down gets fixed.
• Record comps and staff meals in the POS so they show up.
• Use trim and leftovers in specials, soups and staff meals.
• Raise prices or redesign dishes where the plate cost no longer works.
• Compare actual with theoretical food cost every month. The food waste gap calculator puts a dollar figure on the difference.