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Articles · Hospitality

How to Calculate Food Cost: Formula, Example and Benchmarks for Restaurants

Food cost shows how much you spend on the ingredients you actually sell. Two simple formulas tell you whether your prices work – for the whole business and for every single dish.

by Keywan Fakhri, Industrial Engineer (M.Sc.), Konstanz, Germany · Updated: 16 October 2026

What is food cost?

Food cost is the value of goods used in a period – the ingredients in dishes sold plus spoilage and waste. It is not the same as purchases: what is still in storage only counts once it is used.

Formula for the whole business

At month end you need three numbers: opening inventory, purchases and closing inventory from your stock count.

Food cost = Opening inventory + Purchases − Closing inventory

Food cost % = Food cost ÷ Net sales × 100

Worked example

A restaurant has these values for October (all net of VAT):

ItemAmount
Opening inventory 1 October€4,200
Purchases in October€18,600
Closing inventory 31 October€3,900
Food cost€18,900
Net food sales€62,000
Food cost %30.5%

€18,900 ÷ €62,000 = 30.5%. Of every euro of sales, just over 30 cents goes into ingredients.

Food cost per dish – with yield

For pricing, every dish counts on its own. Yield matters: trimming loses weight, so the purchase price is divided by the usable share.

Ingredient cost = Quantity × Price per kg ÷ Yield

Ingredient (Wiener Schnitzel)QuantityPriceYieldCost
Veal escalope0.17 kg€34.00/kg92%€6.28
Butter0.05 kg€9.80/kg100%€0.49
Potatoes0.28 kg€1.30/kg80%€0.46
Bread for crumbs0.35 pc€1.20100%€0.42
Egg, flour, lemon–––€0.51
Total per portion€8.16

At a net price of €21.90 the food cost is 37.2% – well above a 30% target.

Set the selling price from a target

The other way round, you can calculate the price you need:

Net price = Food cost per portion ÷ Target %

€8.16 ÷ 0.30 = €27.20 net. If that is too high, a smaller portion, a cheaper side or another supplier helps.

Benchmarks

As a rough guide in hospitality: food 28–35%, soft drinks and coffee 10–20%, overall usually 25–32%. What matters most is the trend in your own business: if the rate rises three months in a row, take a closer look.

Five practical tips

  1. Always calculate net – sales and purchases without VAT.
  2. Measure the yield for meat, fish and vegetables once and record it.
  3. Update purchase prices monthly, not once a year.
  4. Count stock on the same day at every month end.
  5. Check dishes above target first – it is often only two or three.

Free Excel template

The Restaurant Profit Analyzer calculates food cost per dish with yield, the monthly food cost percentage, and uses menu engineering to show which dishes to adjust.

Frequently asked questions

What is the difference between food cost and purchases?

Purchases are everything you bought. Food cost is only what was used – changes in inventory are taken out.

Does spoilage count as food cost?

Yes. Wasted goods are used up and raise food cost. That is why it pays to record waste separately.

How often should I calculate food cost?

Monthly for the business, and for the affected dishes whenever a supplier changes prices.