One of the most critical numbers in restaurant management is your food cost percentage. But many operators don't really understand what it is, what a "good" number looks like, or what to do when it starts drifting upward. Let's fix that.
Food cost percentage is the percentage of your revenue that goes toward the cost of ingredients. It's calculated simply: Total Food Cost ÷ Total Revenue = Food Cost %. For example, if you generate $100,000 in sales in a month and spent $28,000 on food, your food cost percentage is 28%.
What's a Normal Food Cost Percentage?
The industry standard is 28-35% for most full-service restaurants. Fine dining typically runs 30-35% because they use premium ingredients and waste more on plate presentation. Quick-service restaurants often run 25-30% because of higher volume and simpler menus.
But here's the important caveat: what's "normal" for you depends on your restaurant type, menu, location, and supplier costs. A steakhouse with prime beef will naturally run higher (32-38%) than a casual Italian place (28-32%). A fast-casual with high volume might operate at 22-26%.
How to Calculate Your Food Cost Percentage
Here's the formula broken down month-by-month:
- Start with beginning inventory (physical count)
- Add purchases during the month
- Subtract ending inventory (physical count)
- The result is your food consumed
- Divide by total revenue from food sales
Example: Beginning inventory $5,000 + Purchases $20,000 - Ending inventory $4,200 = $20,800 food consumed. If you did $75,000 in food sales, your food cost is 20,800 ÷ 75,000 = 27.7%.
Most restaurants calculate this monthly. Some calculate it weekly. The more frequently you calculate it, the faster you can identify problems.
Why Your Food Cost Creeps Up
If you're tracking food cost monthly and you see it drift from 28% to 30% to 32%, something's wrong. Usually it's one of three things:
1. Waste is Higher Than You Think — If your daily inventory counts aren't accurate, you're not seeing where food is disappearing. Spoilage, trim waste, and theft all hide in inaccurate inventory.
2. Portion Sizes Have Drifted — If your staff isn't portion-controlling consistently, you're giving away more food than your menu prices account for. A 2-ounce drift on protein portions across hundreds of covers adds up fast.
3. Menu Mix Has Changed — If your customers are suddenly ordering more expensive dishes, your overall food cost goes up (even if actual COGS doesn't). Conversely, if they shift to cheaper dishes, food cost should drop. Track this separately.
4. Supplier Prices Increased — Sometimes it's just inflation. But if supplier prices went up 10% and you didn't adjust menu prices, your food cost percentage will increase. Calculate the impact of supplier inflation separately so you know if the problem is operational or just market-driven.
The Ideal Food Cost System
The restaurants with the most consistent food costs do three things:
Count inventory daily. This gives you actual-cost data, not estimates. You see trends immediately, not a month later.
Calculate food cost weekly. Instead of waiting for a monthly close, recalculate food cost weekly based on your daily counts. This lets you react faster when something drifts.
"The restaurants that win on food cost aren't doing anything special. They're just measuring it obsessively and reacting quickly to changes."
Track portion consistency. Implement a system where portions are weighed or counted consistently. Use portion scales during service to verify that your 8-ounce chicken breast is actually 8 ounces, not 9 or 10.
When Food Cost Is Good vs. Bad
A food cost percentage isn't inherently "good" or "bad" until you compare it to your target. If your target is 30% and you're running 30%, that's perfect. If you're running 28%, you're doing better than expected. If you're running 35%, you have a problem.
The key is consistency. You want to hit your target number ±1-2% every month. If you're at 30% one month and 34% the next, you've got a problem worth investigating.
Food cost is also directly tied to profit. For every 1% improvement in food cost, you're adding roughly 1% to your bottom line (since you're not cutting salaries or overhead). Going from 32% to 30% on $1,000,000 in revenue is $20,000 in additional profit. That's real money.
Monitor Food Cost in Real-Time
Mise tracks daily inventory and calculates food cost automatically. See your real food cost percentage every single day, not once a month.
Start free →The Bottom Line
Your food cost percentage is one of your three most important operating metrics (along with labor cost and covers per day). Know your target, measure it constantly, understand what's driving it, and react quickly to changes. That's the path to consistent profitability.