Food Cost Formula: Calculate Food Cost Percentage the Right Way
Food cost percentage is the single most important number in restaurant finance. Here's the exact formula, how to use it for each dish, and what targets you should be hitting for your restaurant type.
The food cost formula
Food Cost % = (Food Cost ÷ Menu Price) × 100
If a dish costs $4 in ingredients and you sell it for $14:
($4 ÷ $14) × 100 = 28.6% food cost
71.4% gross margin
Food cost % and gross margin always add up to 100%. A 28% food cost is a 72% gross margin.
How to calculate food cost per dish
Food cost per dish is the sum of the cost of every ingredient in one portion:
- Get your invoice for each ingredient
- Calculate cost per unit: Package Cost ÷ Package Size
- Multiply by quantity used: Cost per unit × Amount used
- Add all ingredient costs together
Worked example: Caesar Salad
| Ingredient | Pkg size / cost | Qty used | Cost |
|---|---|---|---|
| Romaine lettuce | $4.50 / head | 0.5 head | $2.25 |
| Parmesan (block) | $12 / lb | 1 oz | $0.75 |
| Caesar dressing | $8 / 32oz | 2 oz | $0.50 |
| Croutons | $6 / lb | 1 oz | $0.38 |
| Anchovies (optional) | $5 / tin | 3 fillets | $0.30 |
| Total food cost | $4.18 | ||
At $14 menu price: ($4.18 ÷ $14) × 100 = 29.9% food cost
70.1% gross margin ✓ (target: 68–72% for casual dining)
Food cost percentage benchmarks by restaurant type
What's a "good" food cost percentage depends on your restaurant type. Here are industry benchmarks:
| Restaurant Type | Food Cost % | Why |
|---|---|---|
| Coffee shop (beverages) | 15–22% | Cheap ingredients, high price tolerance |
| Pizza | 22–28% | Low-cost dough + cheese base |
| Fine dining | 25–30% | High prices justify higher cost |
| Casual / fast casual | 28–33% | Volume compensates for tighter margins |
| Bakery | 25–32% | Labor-intensive, premium ingredients |
| Food truck | 28–35% | Lean menu, operational overhead high |
| BBQ / Steakhouse | 30–38% | Expensive proteins are unavoidable |
| Seafood | 32–40% | Volatile fresh fish prices |
How to use food cost % to set your menu price
Flip the formula: if you know your food cost and target food cost %, you can calculate the right menu price:
Menu Price = Food Cost ÷ Target Food Cost %
Example: $4.18 Caesar Salad food cost, targeting 30% food cost:
$4.18 ÷ 0.30 = $13.93 → price at $14
Total food cost vs. food cost per dish
There are two related but different calculations:
Food cost per dish
Sum of all ingredient costs for one serving
Use for: Set individual dish prices
Total food cost %
(Total food purchased ÷ Total food revenue) × 100
Use for: Monitor overall restaurant performance
Track both. Per-dish food cost tells you whether each item is priced correctly. Total food cost % tells you whether your restaurant as a whole is performing within target.
Actual vs. ideal food cost
Your ideal food cost is calculated from recipes and menu prices. Your actual food cost comes from your invoices and sales reports. The gap between them — called food cost variance — reveals problems:
Over-portioning
Use a kitchen scale and standardize portion weights
Waste and spoilage
Order to par, rotate FIFO, track waste daily
Theft
Implement receiving controls and inventory counts
Supplier price increases
Compare invoices monthly, reprice quarterly
Recipe drift
Conduct periodic recipe audits with your kitchen team
A food cost variance of more than 2–3% consistently signals a systemic problem. Investigate it — don't accept it as normal.
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