How to calculate food cost percentage (and hit restaurant targets)
Food cost percentage is the most-watched number in restaurant operations. Here's the formula, the industry targets by concept, and the gap between theoretical and actual that quietly eats most kitchens.
What food cost percentage means
Food cost percentage is the share of menu price that goes to ingredients. A burger that costs $3.20 in ingredients and sells for $14 has a food cost percentage of $3.20 / $14 = 22.9%. It's the single most-watched number in restaurant operations.
It's the opposite of gross margin in a sense: low food cost % means high gross margin. A 30% food cost is a 70% gross margin on that dish.
Industry targets
| Concept | Food cost target | Resulting margin |
|---|---|---|
| Fine dining | 30-35% | 65-70% |
| Casual / family | 28-32% | 68-72% |
| Fast casual | 25-30% | 70-75% |
| Quick service | 26-30% | 70-74% |
| Coffee shop | 20-25% | 75-80% |
| Bar / pub (alcohol) | 15-20% | 80-85% |
Most full-service restaurants target 28-32%. Below 25% usually means undersized portions or quality issues that hurt repeat business. Above 35% is unsustainable for most concepts because labor, rent, and overhead eat the rest.
The formula, slowly
Food cost percentage = (Cost of ingredients per portion ÷ Menu price) × 100
To calculate per dish:
- List every ingredient in the recipe
- Get the per-portion cost of each (the cost of the whole package divided by how many portions it makes)
- Sum them
- Divide by the menu price
That's the simple version. The harder version, which is what actually shows up on your P&L, is below.
Theoretical vs actual food cost
The recipe math gives you theoretical food cost. What actually shows up on your monthly statement is actual food cost, and it's almost always 2-6 points higher. The gap is your operational losses.
Sources of the gap:
- Waste — trimming, spoilage, dropped plates, comp'd meals (3-5% typical)
- Over-portioning — line cooks routinely serve 10-20% more than the spec, especially on busy nights
- Theft — staff meals beyond policy, off-the-books transactions (1-3%)
- Inventory write-downs — items past their use-by date
- Price increases from suppliers between menu updates
If your theoretical food cost is 30% but actual is running 35%, you have 5 points — about $5 per $100 of sales — leaking somewhere. On a restaurant doing $80,000/month, that's $4,000/month of missing money.
Worked example: pricing a burger
A casual restaurant wants to add a new burger. The owner targets 28% food cost.
Ingredient costs per portion:
- Beef patty (6 oz): $1.80
- Bun: $0.45
- Lettuce, tomato, onion, pickle: $0.55
- Cheese slice: $0.35
- Sauce: $0.15
- Fries (side, 6 oz portion): $0.55
- Garnish + condiments: $0.20
- Total: $4.05
Plus a 6% waste allowance: $4.05 × 1.06 = $4.30
Menu price target: $4.30 / 0.28 = $15.36
Round to a psychologically friendly $14.95 and the food cost percentage becomes $4.30 / $14.95 = 28.8%. Comfortable.
Menu engineering: where food cost meets sales mix
Food cost isn't constant across the menu. A restaurant's overall food cost % is a weighted average based on what's actually selling. Two strategies use this:
Loss leaders: a $4 cocktail with 30% food cost loses some margin per drink but draws traffic. Used selectively, in moderation.
Anchors and stars: the menu engineering matrix. "Stars" are high-margin items that sell well — feature them prominently. "Plowhorses" sell well but have low margin — try to rework the recipe to improve margin without changing the dish. "Puzzles" are high-margin items that don't sell — either reposition them on the menu or remove. "Dogs" are low-margin and don't sell — remove.
Quick fixes when food cost runs high
- Audit portions. Pull the spec sheets, weigh actual portions on the line for a week. Almost always 10-15% off.
- Tighten waste. Track every comp, every trim. Train on yield (how to get more usable product from each input).
- Renegotiate the top 5 suppliers. Annual contracts almost always have room. Switch one if needed.
- Reprice the top 5 items. Small increases on the best-sellers move the average. $0.50 on a high-volume burger is real money.
- Remove dogs. Items below 5% of sales with high food cost are pure dead weight on the menu and on your storeroom.
The bottom line
Food cost percentage is the foundation of restaurant pricing, but it's not the whole picture. A 28% food cost means nothing if your labor cost is 40%. Track food cost weekly, fix the gap between theoretical and actual, and never set a menu price by gut feel.