What is a good prime cost for a restaurant?

May 7

Prime cost is one of the first numbers I look at when I’m trying to understand the health of a restaurant. Not because it tells the whole story. It doesn’t.

But it tells me a lot.

Prime cost is your cost of goods sold plus labor. That means food, beverage, paper, hourly labor, management labor, taxes, benefits, and the other labor-related costs that show up in the business.

In plain English:

Prime cost is what it costs you to make the product and staff the restaurant.

And for most restaurants, that is where the money either gets protected or quietly leaks out.

How to calculate prime cost

The basic formula is:

COGS + Labor = Prime Cost

Then you divide that by sales:

Prime Cost ÷ Sales = Prime Cost %

Example:

If a restaurant does $100,000 in sales, has $30,000 in COGS, and $32,000 in labor, the prime cost is:

$30,000 + $32,000 = $62,000

Prime cost percentage:

$62,000 ÷ $100,000 = 62%

So in this example, prime cost is 62%.

So what is a good prime cost?

There is no perfect number for every restaurant. A full-service restaurant, fast casual concept, pizza brand, bar-heavy concept, and scratch kitchen may all look different.

But generally, I like to see prime cost somewhere around:

55% to 62%

That is not a universal rule. It is a starting point. If you are consistently above that range, you probably have some operating pressure worth digging into. That pressure may be coming from labor. It may be coming from food cost. It may be coming from pricing, waste, prep, scheduling, overtime, discounting, theft, poor inventory habits, or a menu mix problem.

The number tells you where to look. It does not tell you the whole answer.

Why prime cost matters

A lot of operators spend too much time looking at sales. Sales matter, of course.

But sales can hide a lot of problems. I have seen restaurants grow sales and still lose margin because labor got sloppy, food cost drifted, or managers were not being taught how to think about productivity.

Top-line growth feels good.

But if the growth comes with weak controls, you can work harder and make less. That is why prime cost matters.

It forces the conversation back to the controllable parts of the business.

Prime cost is not just an accounting number

This is where a lot of teams get stuck.

They review prime cost after the month closes, talk about it for a few minutes, then move on.

That is not enough. Prime cost is an operating number.

It is affected by daily decisions:

How schedules are written
How prep is managed
How portions are controlled
How managers cut labor
How ordering is done
How waste is tracked
How recipes are followed
How overtime is controlled
How leaders respond when sales shift

If the number is only discussed once a month, you are already late.

Don’t fix prime cost by blindly cutting

This is important. A high prime cost does not always mean “cut labor.”

Sometimes labor is high because sales are soft. Sometimes food cost is high because pricing is wrong. Sometimes managers are overstaffing because the training system is weak. Sometimes prep is inconsistent because no one owns standards. Sometimes labor looks bad because the restaurant is protecting guest experience during a growth period.

You have to diagnose before you prescribe.

Blind cuts create new problems. Bad service. Slower ticket times. Burned-out managers. Inconsistent food. Turnover.

That is not control. That is panic.

What I look at first

When prime cost is too high, I usually start with a few questions:

Is the issue labor, COGS, or both?
Is the problem consistent across locations or isolated?
Are managers seeing labor and food cost weekly?
Are schedules built from sales forecasts or just copied from last week?
Is the menu priced correctly?
Are recipes and portions actually being followed?
Is there a weekly rhythm to review the numbers?
Does the GM understand what they can control?

Those answers usually tell me whether the business has a cost problem, a visibility problem, a leadership rhythm problem, or a systems problem. Usually, it is some combination of all four.

The real goal

The goal is not to hit some textbook prime cost number just to say you did. The goal is to build a business where labor and COGS are understood, managed, and acted on before they become expensive.

That requires visibility. It requires accountability. It requires managers who understand the numbers. And it requires a rhythm that keeps the team close enough to the business to catch drift early. Prime cost improves when operators stop reacting to the P&L and start managing the behaviors that create it.

If your prime cost feels too high, the first move is not to guess. The first move is to find where the margin is leaking.

That is exactly what we look for through Restaurant Profit Diagnostics, Restaurant Food Cost & Margin Optimization, and Restaurant Labor Optimization.