Restaurant food cost in 2026: calculation, method and margin control

Food cost — or the food-to-revenue ratio — is a restaurant operator's survival metric. One extra food-cost point on a venue turning over €600,000 means €6,000 of margin disappearing over the year, with nobody noticing immediately. This article explains how to calculate it correctly, how to distinguish the theoretical food cost from the actual one, and — above all — how to steer it.

Food cost is the cost of raw materials consumed expressed as a proportion of the revenue those materials generated. It is stated as a percentage. A food cost of 30% means that for every €100 of dishes sold (net of VAT), €30 went on raw ingredients.

The target depends on the concept:

These ranges are indicative. A steakhouse will structurally carry a higher food cost than a pasta concept, and that is not a problem as long as selling prices and table turns follow suit.

Actual food cost cannot be computed from purchases alone. The correct formula goes through consumption, which accounts for the change in stock:

Food consumption = Opening stock + Purchases for the period − Closing stock

Food cost % = Food consumption / Net food revenue

The most common mistake is dividing the month's purchases by the month's revenue. That is wrong: in a month where stock was built up (a large purchase at month-end), food cost would appear artificially high, and the reverse is equally true. Without a valued stocktake, food cost is meaningless.

That is why a monthly stocktake (at minimum) is non-negotiable. It does not need to be accurate to the gram, but it must be done regularly and by the same method every time.

Theoretical food cost is what your recipes ought to produce. It is built from recipe cards: for each dish, you add the cost of every ingredient (to the gram), then multiply by the quantities sold. This is the "ideal" food cost — what you would achieve if nothing were lost.

Actual food cost is measured by stocktake. It captures everything the theoretical ignores: waste, over-portioning, complimentary dishes, breakage, theft, and till errors.

The theoretical/actual gap is the most useful indicator in the restaurant. A gap of 1 to 2 points is normal. Beyond 3 points, the leak must be found:

• non-standardised portions (the chef "loads" the plate);
• waste and expired stock (poor stock management);
• untracked complimentaries (discounts, dishes given as goodwill);
• till entry errors (dishes not rung through);
• theft or shrinkage.

Without recipe cards, you cannot calculate the theoretical. Without the theoretical, you cannot measure the gap. Without the gap, you are steering blind. Recipe cards are the foundation.

A recipe card lists, for each dish: the ingredients, exact quantities, unit material cost, total material cost, and selling price. It allows you to calculate the material ratio for each dish and to practise menu engineering: ranking dishes by popularity and margin in order to decide which to promote, rework or drop.

A dish that sells well but carries a thin margin warrants a supplier renegotiation or a portion adjustment. A high-margin dish that sells poorly deserves better placement on the menu. This is often where the easiest margin gains are found — inside the menu itself.

Food cost is necessary but insufficient. The true compass of profitability is prime cost:

Prime cost = Food cost (+ beverage cost) + Fully-loaded payroll, expressed as a proportion of net revenue, with a target below 65%.

Why? Because an operator can "buy" a good food cost by overstaffing the kitchen (more in-house preparation, fewer losses), or conversely cut payroll by buying pricier semi-prepared products. Only prime cost captures that trade-off. It is the indicator we track as a priority with our restaurant clients — see our article on restaurant financial KPIs and the one on profitability.

Drawing on dozens of HCR (hotels, cafés and restaurants) client files, these are the most effective levers, in order of priority:

1. Set up recipe cards and calculate the theoretical food cost for each dish.
2. Run a monthly valued stocktake and calculate actual food cost.
3. Measure the theoretical/actual gap and identify the primary source of loss.
4. Standardise portions (scales, calibrated containers, staff training).
5. Renegotiate with suppliers on the 20% of product lines that account for 80% of purchases — with data in hand.
6. Work the menu (menu engineering): remove low-margin, low-rotation dishes.
7. Track complimentaries and waste to turn them into manageable data.

None of these levers is spectacular in isolation. Together, they consistently deliver 2 to 4 food-cost points — on an average-sized venue, that translates to several tens of thousands of euros per year.

A brasserie with €900,000 in revenue was showing an actual food cost of 36% against a theoretical of 32% — a 4-point gap that management could not explain. Introducing a rigorous monthly stocktake and tracking complimentary dishes revealed two leaks: non-calibrated chip and meat portions (systematic over-portioning) and complimentary dishes given to handle complaints that were never recorded. Standardising portions, introducing calibrated containers, and formalising a procedure for complimentaries brought the actual food cost down to 33% within five months — roughly €27,000 of margin recovered over the year, with no change to the menu or prices.

Food cost receives most of the attention, but its twin — beverage cost, the cost of drinks expressed as a proportion of drink revenue — is frequently overlooked. Yet drinks — soft drinks, coffee, wine, beer, cocktails — are often the highest-margin items on the menu, and a drift there is just as costly as in the kitchen.

The usual target lies between 22% and 28%, but it varies considerably by category: a coffee or soft drink carries a very low material cost (high margin), a wine by the glass depends on the bottle purchase price and the number of glasses poured, a cocktail on the measure of spirit used. Reading a blended beverage cost hides these variances; it must be read by family (hot drinks, soft drinks, beers, wines, spirits/cocktails).

The classic leaks we observe: over-pouring spirits (a "generous" cocktail destroys the margin), draught losses (beer), untracked complimentaries, breakage and theft — drinks, with their high unit value and ease of diversion, are a common shrinkage area. Monitoring requires a separate drink stocktake and, for high-volume bars, a reconciliation between alcohol purchases and drink revenue subject to 20% VAT — the same cross-check that the tax authority (DGFiP) uses in an audit. Reading food cost and beverage cost separately prevents a strong drink margin from masking a kitchen drift, or vice versa.

Food cost only has value if it is tracked regularly and by a consistent method. Three rhythms coexist:

• Monthly: the minimum, aligned with the month-end stocktake; it serves to steer margin and detect drifts before the accounting close;
• Weekly: recommended for high-volume venues and fast food, where a purchasing drift can be corrected within days;
• Continuous: via management software connected to the till and supplier orders, which calculates a theoretical food cost in real time.

The tool matters less than the discipline. A stocktake carried out at the same moment, covering the same scope and using the same valuation method (last purchase price or weighted average cost), produces a comparable time series — and it is that series, not an isolated figure, that reveals trends. A food cost moving from 30% to 33% over three months is a signal; the same 33% seen once says nothing. We calibrate the frequency to the venue's volume and integrate food cost into the monthly dashboard alongside payroll and cash, for a prime-cost reading — see our article on restaurant financial KPIs.

Food cost is a steering tool, not a year-end statistic. Calculate it on consumption (with a stocktake), compare theoretical and actual, and always read it alongside payroll via prime cost. That discipline — more than any one-off negotiation — is what sustainably restores margin.

To embed this approach in your accounting, see our expert-comptable support for restaurants and the complete 2026 restaurant accounting guide.

Updated 3 June 2026. This article sets out a general method for steering food margin; targets are indicative and depend on your concept. Sources: INSEE, French General Chart of Accounts (PCG), HCR sector management benchmarks.