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Recipe costing: what does one plate actually cost?
A busy lunch service can hide an expensive recipe. Before testing a menu price, work out what leaves the kitchen on one plate: the purchased ingredients, the usable portions and the serving size. Then compare that cost with the selling price.
Plate cost is the ingredient cost of one serving. Food cost percentage compares that cost with the menu price. They answer different questions: a lower percentage does not automatically mean more dollars available to cover labor and overhead.
Fictional examples. Real decisions need your own data.
Every recipe, price, quantity, date and business situation here is made up for learning. The calculators use stated assumptions and do not forecast demand. Nothing is saved to your workspace or sent to a register.
Start with the case, finish with the serving
A supplier invoice describes what you buy; a recipe describes what you serve. Match those units before adding costs. This fictional chicken sandwich uses ready-to-use portions. The example does not assume that a raw pound produces a specific cooked yield.
| Ingredient | Fictional purchase | Used per sandwich | Serving cost |
|---|---|---|---|
| Roll | 24 rolls / $21.60 | 1 roll | $0.90 |
| Prepared chicken | 20 usable portions / $32.00 | 1 portion | $1.60 |
| Cheese | 40 slices / $14.00 | 1 slice | $0.35 |
| Greens | 10 usable servings / $2.50 | 1 serving | $0.25 |
| Sauce | 20 usable servings / $4.00 | 1 serving | $0.20 |
| Total | Original fictional recipe | $3.30 | |
The unit check
Case price ÷ usable units in the case × units in the recipe = ingredient cost per plate. Add every included ingredient. For weighed ingredients, convert purchase and recipe weights to the same unit and check the usable yield. Do not mix a case price with a per-pound recipe amount.
From example to decision
Explore the scenario in the free demo or get started with your own business documents.
Try a price. Watch the dollars and percentage.
The original recipe totals $3.30. Editing plate cost below overrides that total for this scenario; the recipe table stays unchanged.
Food cost percentage
27.5%Ingredient cost ÷ menu price.
Left after ingredients
$8.70Available to cover other costs; not net profit.
Ingredient margin share
72.5%The share remaining after included ingredients.
Use +/− or type amounts. Steps: $0.10 cost / $0.25 price. Price must be positive. USD on the same assumed basis, excluding sales tax; no tax conversion is calculated.
A higher menu price is a scenario to test
At the same $3.30 ingredient cost, a $13 price leaves $9.70 before other costs, versus $8.70 at $12. That comparison holds only for one sandwich sold. It does not tell you how many customers will order at the higher price.
A restaurant can also sell a lower-percentage item that leaves fewer dollars per order. Read the percentage and dollar amount together, then check the sales mix, preparation work and costs excluded from the recipe.
Before you use this in a decision
Click to work through the assumptions. This checklist stays in this page only.
Explore the price decision in Restozia
Start from supported invoices, supplier prices and recipes. Check extracted drafts, quantities and ingredient matches before using a cost figure. In demo step 4, change a prepared menu price and inspect the ingredient margin.
The full demo uses its own prepared fictional menu and figures. Your calculator inputs are not transferred. Results remain scenarios, not a forecast.
Questions restaurant operators ask
Open a question to see the explanation.
How do I calculate food cost percentage per plate?
Divide the included ingredient cost per serving by its menu price and multiply by 100. Here $3.30 ÷ $12.00 × 100 = 27.5%. This recipe ratio is different from food cost for an entire accounting period.
Is a restaurant food cost percentage of 30% always right?
There is no universal target established by this example. Menu mix, labor, waste, service format and selling prices differ. Choose an explicit business assumption and check the dollars left to cover the rest of your costs.
Should I include waste and cooking yield?
If they change the usable amount, account for them explicitly using a measured or stated yield assumption. The table uses already usable portions. It does not calculate raw-to-cooked yield or hide an allowance for waste.
Does a food cost calculator recommend my menu price?
This calculator compares ingredient cost with a price you choose. It does not assess demand, competition, sales tax, labor or full profitability.
Can I cost a recipe before I have sales history?
Yes, if the recipe quantities, usable yields and purchase prices are available. You can calculate cost per serving. You cannot turn that into a sales-volume forecast without additional evidence and explicit assumptions.
A recipe cost is the start of the decision
When an invoice changes, see which dishes move. When plate margins look healthy but cash feels tight, check labor, overhead and the full cost boundary.