Costs and stock
Contribution margin per dish: why it matters more than food cost percentage
A low food cost percentage can be worth just a few euros. A higher one can be worth much more. What counts is margin in cash, not the percentage.
Klyra Editorial · Published on 22 January 2026 · 7 min read
A dish's contribution margin is the difference between selling price and ingredient cost: it is the cash amount that dish leaves in the till to cover fixed costs and generate profit, every time it is sold.
Why the percentage can mislead
A salad sold at €8 with a 15% food cost costs €1.20 and leaves €6.80 margin. A steak sold at €22 with a 38% food cost costs €8.36 and leaves €13.64. The steak has a higher food cost percentage, yet generates almost double the margin in cash. Optimising the menu purely to lower food cost percentage would push customers toward the salad, cutting real takings.
Example with five dishes
- Mixed starter: price €10, cost €2.80, margin €7.20 (28% food cost)
- Tomato pasta: price €9, cost €1.80, margin €7.20 (20% food cost)
- Mushroom risotto: price €14, cost €4.90, margin €9.10 (35% food cost)
- Beef steak: price €22, cost €8.36, margin €13.64 (38% food cost)
- Seasonal salad: price €8, cost €1.20, margin €6.80 (15% food cost)
How to use this in practice
- Calculate the cash margin of each dish, not just the food cost percentage
- When training staff, push high-cash-margin dishes, not low-food-cost ones
- In menu placement, give visibility to dishes that generate more margin at similar popularity
- Use margin to decide where to run promotions: never on a dish already running on thin margin
You can calculate margin and food cost for each dish in seconds with Klyra's free tool: /strumenti/calcolo-food-cost.
FAQ
So is food cost percentage useless?
No, it remains useful for comparing similar dishes or for overall cost control. But to decide which dishes to promote, cash margin is the right indicator.
How do you calculate the total menu contribution margin?
Multiply each dish's unit margin by units sold over a period and add the results: that gives each dish's contribution to overall margin.
Should a low-margin dish always be dropped from the menu?
Not necessarily: some low-margin dishes attract customers or complete the offer. It should be assessed together with popularity, not margin alone.
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