Your food cost percentage, explained — what the number means and what to do about it

What it is

Food cost percentage is what you spent on food to make the food you sold, expressed as a share of your food sales. That's it.

You can run it two ways: for the whole restaurant over a period (your COGS ÷ your sales for the month), or for a single dish (its plate cost ÷ its menu price). Both are useful — the restaurant number tells you if you're healthy overall; the per-dish number tells you where the problem is. Walk through the math step by step in how to calculate food cost percentage, or just run it in the food cost percentage calculator.

What's a "good" food cost percentage?

As a rough industry rule of thumb, many full-service restaurants aim for somewhere around 28–35%. But the honest answer is that the right target depends on your concept, your menu, and your market — a pizzeria, a steakhouse, and a coffee shop should not have the same number.

What matters more than the exact number is knowing yours and keeping it stable. A steady 34% you understand beats a 30% you got to by accident and can't hold.

Reading it right (the common traps)

A single month can lie — a big catering order, a slow week, or a bulk purchase you haven't sold through yet all skew it. Look at the trend, not one data point. And remember the number is a symptom, not a diagnosis: a high percentage tells you something's off, not what. That's why the per-dish view matters.

What to do when it's too high

Don't reach for an across-the-board price hike or a portion cut — those are blunt and guests feel them. Work in this order:

1. Find the specific dishes. Re-cost your menu against today's prices and flag the items over your target. It's usually a handful, not the whole menu.

2. Fix those dishes. Standardize the portion, re-price it, or re-engineer it (swap a costly component, promote a high-margin sibling). See how to lower food cost for the full playbook.

3. Set the target on purpose. Decide the food cost you're actually aiming for and price toward it, rather than discovering it after the fact — the ideal food cost calculator works this backward from the margin you want.

4. Catch what moves it. Most of the drift comes from vendor price creep and portion drift — keep an eye on both so the number stays where you put it.

Here's the payoff in plain terms: a kitchen doing $50,000/month in food that trims its food cost by just 1% keeps about $500 a month — roughly 3.4× a $149 plan — without touching the menu. Knowing the number is step one; acting on the few dishes behind it is where the money is.