Guide

Calculating food cost: the most important metric in hospitality

Not knowing your goods cost is flying blind. Here is how to calculate your food cost percentage and reduce it deliberately.

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What is food cost?

The food cost percentage (goods cost ratio) measures what share of revenue is spent on raw ingredients. It is calculated as: Goods cost ÷ Net revenue × 100. A restaurant with €10,000 in revenue and €3,200 in goods cost has a food cost of 32%. This metric is the single most important indicator of a restaurant's financial health.

Further reading: GastroSystem dashboard, Restaurant staff scheduling

Step by step: calculating food cost

These five steps lead to the correct goods cost percentage for your business:

  1. Record opening stock

    Stocktake at the start of the month: value all raw ingredients at purchase price. This is the baseline for the calculation period.

  2. Add purchases

    Add all goods purchases during the calculation period (typically one month) — net invoice amounts, including delivery fees.

  3. Deduct closing stock

    Stocktake at end of month. Formula: Goods cost = Opening stock + Purchases − Closing stock.

  4. Determine net revenue

    Revenue excluding VAT. With mixed VAT rates (e.g. 7% food, 19% beverages under German law), itemise both categories separately.

  5. Calculate and interpret the percentage

    Food cost % = Goods cost ÷ Net revenue × 100. Below 28% is excellent, 28–35% is acceptable, above 35% is critical — each relative to concept type (see below).

Target ranges by concept

There is no universal target — it depends heavily on the type of business:

22–28%

QSR / fast food

Low food cost through standardised recipes, bulk purchasing, and minimal preparation. Margin through volume.

28–32%

Casual dining

Typical range for a mid-market restaurant with fresh cooking. This is where the percentage is most optimisable.

30–38%

Fine dining

Premium ingredients, intensive labour, preparation waste. Offset by significantly higher contribution margins per cover.

Five levers for reducing food cost

These measures have the strongest practical impact:

1. Standardise and document recipes

Every dish gets a precise recipe with gram weights. Variation between different cooks is one of the most common causes of uncontrollable food cost swings.

2. Weekly ordering instead of daily purchasing

Daily small purchases cost time and lead to impulse buys. A weekly ordering routine with defined suppliers reduces goods cost and increases negotiating power.

3. Implement FIFO consistently

First In, First Out: older stock comes to the front. Mould and spoilage from forgotten stock are unnecessary. Consistent FIFO typically saves 2–4% in goods cost.

4. Rationalise the menu

Any dish with a food cost above 35% should be reviewed: raise the price, adjust the portion, or remove it. Large menus with many individual ingredients increase spoilage and complexity.

5. Train staff

Kitchen staff who understand the link between goods cost and business performance handle ingredients more carefully. Monthly feedback on the food cost figure is more effective than supervision alone.

Revenue & metrics in the dashboard

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Common questions about food cost calculation

What is the difference between food cost and beverage cost?

Food cost refers to goods cost for food items; beverage cost covers drinks. Beverages typically have a lower ratio (15–25%), so a mix of food and drink revenue improves the overall percentage.

How often should I calculate food cost?

Monthly as a minimum, weekly as best practice. For rapid control, a daily estimate based on POS data helps.

What should I do if food cost suddenly rises?

Work systematically: 1) Check purchasing prices (have supplier prices risen?), 2) Check portion sizes (are staff deviating from recipes?), 3) Check shrinkage (stocktake discrepancies?), 4) Rule out theft.

Do I calculate with or without staff meals?

Staff meals are not goods cost — they are a personnel cost. Book them separately so they do not distort the food cost figure.

How does GastroSystem help with food cost control?

The GastroSystem dashboard shows you up-to-date daily revenue figures. Combined with your purchasing invoices, you can calculate the food cost percentage weekly without manual calculations.

Keep goods cost in view

GastroSystem delivers daily revenue data that you can use directly for your food cost calculations.

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