Menu Costing Calculator: Know What Each Plate Actually Costs

Menu costing produces one number per dish: what it costs to put that plate in front of a guest. Everything downstream — pricing, promotions, which items to push, which to retire — depends on that number being real rather than remembered.

How it is done today

In most independent kitchens, costing is a conversation. The chef knows roughly what goes into a dish, the owner knows roughly what the market charges, and the price sits somewhere between the two. It survives while purchase prices are stable and stops working the moment one core ingredient moves sharply.

The next version is a costing sheet built once, usually in Excel, at the time the menu was designed. The structure is often good. The problem is that it was costed on purchase weight with no yield, prices were typed into the recipe rather than referenced, and nobody has opened it since the file was named final.

Ingredient master

• Ingredient name and code, with a standard unit such as kilogram or litre.
• Purchase quantity and purchase price, plus supplier and date of the rate.
• Yield percentage after trim, peel, bone or cooking loss.
• Usable cost per unit — calculated as purchase cost per unit divided by yield.
• Volatility flag for items whose price moves often enough to need watching.

Recipe and dish

• Dish name, category and portion size stated in grams or millilitres.
• Component lines — ingredient, quantity per portion, calculated line cost.
• Sub-recipe lines for sauces and bases, consumed by weight at their own costed rate.
• Condiment and oil allowance as a percentage of ingredient cost.
• Packaging cost, applied only to delivery portions.
• Plate cost — the sum of the above.
• Selling price by channel, and commission percentage where applicable.
• Net realisation, contribution and food cost percentage, calculated per channel.

An illustrative example with invented figures, shown to demonstrate the method rather than to suggest real prices. Costs are indexed so the arithmetic is easy to follow: assume plate cost of 100 units for a dine-in portion.

The delivery column is where most menus lose money invisibly. The dish looks like a higher-priced item on the app, and yet packaging and commission move the effective food cost by ten percentage points. Costing it as one dish with one price would have shown a comfortable margin that does not exist on half the volume.

Costing stops being a one-off project

With ingredient prices held once and referenced by recipes, a supplier rate change is a single edit. The dishes affected can be listed immediately rather than rediscovered at the end of a bad quarter.

Supplier conversations get a record

Rates are negotiated on WhatsApp and calls. Keeping those threads against the supplier record means the quoted rate, the date and the person who agreed it are retrievable when the invoice disagrees.

Catering and corporate orders get a pipeline

Event and bulk enquiries need quoting, chasing and invoicing. That is ordinary pipeline work, and it benefits from the same costing discipline applied per head rather than per plate.

Ignoring yield

Costing on purchase weight understates the ingredients that dominate the plate.

Hard-coding prices inside recipes

If a rate is typed into forty recipes, it will be updated in six of them.

Forgetting the small stuff

Oil, salt, garnish and packaging are individually trivial and collectively the difference between the margin you planned and the one you got.

Comparing dishes on food cost percentage alone

Percentage flatters cheap items. Rank on contribution before deciding what to promote or retire.

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