Plate cost is the total ingredient cost of a single menu item as served, with adjustments applied for yield loss (trim, cooking shrinkage, waste).
Formula: Plate cost = Σ (Ingredient AP cost ÷ Yield %) × Recipe quantity, summed across all ingredients in the recipe.
Why plate cost is not just "recipe ingredient cost"
The most common operator error is calculating plate cost using as-purchased (AP) prices without applying yield factors. A recipe specifying 8 oz of chicken at $4.50/lb AP is reported as $2.25 in plate cost — but the 8 oz on the plate likely required 9–10 oz of as-purchased product to deliver, after trim and cooking loss. The true plate cost is closer to $2.75–$2.85, a 22–27% understatement.
Operators who skip the yield adjustment routinely show "menu food cost" reports 2–4 points better than their actual P&L food cost percentage. The gap is yield loss the recipe report didn't account for.
How to calculate plate cost correctly
- List every ingredient in the recipe, with its as-purchased unit cost and recipe quantity.
- Apply yield factor for each ingredient — divide AP cost by yield % to get edible-portion cost. (Yield factors: 5–10% loss on most proteins, 10–20% on produce, plus 15–30% additional cooking loss on roasted/braised items.)
- Multiply edible-portion cost by recipe quantity for each ingredient.
- Sum across ingredients.
- Add allocated overhead if the operation tracks variable kitchen overhead per plate (gas, oils, seasonings used in trace amounts).
Example: a 6 oz chicken-breast plate. AP cost: $4.50/lb. Yield: 75% (after trim + cook loss). Edible-portion cost = $4.50 ÷ 0.75 = $6.00/lb. 6 oz = 0.375 lb. Chicken plate-cost contribution = 0.375 × $6.00 = $2.25. Add side vegetable (with its own yield), sauce, garnish, and you have the full plate cost.
Plate cost calculator
Compare what you'd report as plate cost using as-purchased prices vs. the true plate cost after yield-factor adjustment. The gap is what's missing from your menu-pricing math when yield gets skipped.
Yield-loss gap: +33.3%. Skipping yield understates plate cost by this much. Menu pricing built on AP-only numbers will run food cost above target.
Yield-factor reference: 5–10% loss on most proteins, 10–20% on produce, plus 15–30% additional cooking loss on roasted/braised items.
Plate cost as the menu-pricing input
Standard menu-pricing math: divide plate cost by target food cost percentage to get menu price. If plate cost is $7.20 and target food cost is 30%, menu price = $7.20 ÷ 0.30 = $24. The plate-cost number has to be accurate or the menu price math compounds the error: a 25% understated plate cost yields a menu price that delivers 38% food cost in practice instead of the targeted 30%.
Common operator mistakes
- Skipping yield factors. Plate cost without yield adjustment is fiction. Industry-standard recipe costing always applies yield.
- Using stale ingredient prices. Vendor prices drift. Re-cost recipes quarterly at minimum, monthly for high-volume items.
- Ignoring trace ingredients. Oils, seasonings, garnishes — small per-plate costs that aggregate to 2–4% of total food cost when summed across menu mix. Either include them per recipe or account for them as a kitchen overhead allocation.
Related concepts
- Yield factor — the adjustment that makes plate cost real
- Food cost percentage — the target plate-cost is sized against
- Contribution margin — what plate cost subtracts from menu price
- How do I price menu items for profit? — full pricing-strategy walkthrough