Food Cost: How to Calculate It (Formula, Examples, Ideal %)

Food cost is the cost of the ingredients in an item divided by its selling price, expressed as a percentage: Food cost percentage = (Portion cost ÷ Selling price excluding tax) × 100. This number shows what each item on your menu actually earns you. In this guide we walk through how to calculate food cost step by step with worked examples: how to account for trim and cooking loss, how to measure food cost over a period, and how to set your menu prices.

All figures in this article are illustrative examples in dollars; replace them with your own purchase prices.

What is food cost?

Food cost is the total cost of the ingredients used to prepare the items you sell. Rent, staff, electricity and other overheads are not included; they are tracked separately. For drinks, the same calculation is often called "beverage cost", and the method is identical.

Food cost is used in two ways:

• Per item (theoretical) food cost: the cost of one portion based on the recipe, and its ratio to the selling price. You use it to set menu prices.
• Per period (actual) food cost: the ingredients used in a month as a share of that month's food sales. It reveals waste, trim loss and shrinkage.

The food cost formula

The per-item formula is:

Food cost % = Portion cost ÷ Net selling price × 100

"Net selling price" is the menu price without VAT or sales tax. If your menu prices include tax, take it out first: Net price = Menu price ÷ (1 + tax rate). In the examples below we assume menu prices include a 10% tax purely for illustration; confirm the rate that applies to your products with your accountant.

How to calculate recipe cost: step by step

An accurate food cost starts with an accurate recipe. Write down every ingredient that goes into an item in grams or millilitres, then multiply it by the unit price.

1. Write the recipe: list every ingredient with its quantity. Don't forget small items such as napkins, cups, lids and sauce packets.
2. Find the unit price: take the price per kilogram, litre or piece from your latest supplier invoice.
3. Account for loss: for ingredients that lose weight through peeling, trimming or cooking, calculate the usable cost (see below).
4. Add it up: the total of all lines is your portion cost.
5. Convert it to a percentage: divide the portion cost by the selling price excluding tax and multiply by 100.

Example 1: Latte food cost

A takeaway latte in a paper cup, using example purchase prices:

• 18 g of coffee beans for the espresso: at $30 per kg, 18 × 0.03 = $0.54
• 200 ml of milk: at $1.40 per litre, $0.28
• Cup and lid: $0.25
• Allowance for sugar, stirrer and napkin: $0.05

Portion cost: $1.12. If the menu price is $4.40 (tax included), the net price is 4.40 ÷ 1.10 = $4.00. Food cost percentage: 1.12 ÷ 4.00 × 100 = 28.0%.

Example 2: Accounting for yield (burger meal)

Some ingredients don't go onto the plate the way you buy them. You peel and fry potatoes; you trim meat. That loss is called waste (or trim loss), and the share that actually reaches the plate is the yield. Usable cost is calculated like this:

Usable cost = Purchase price ÷ Yield percentage

Example: if potatoes cost $1.40 per kg and the yield after peeling and frying is 70%, the real cost per kilogram of potato on the plate is 1.40 ÷ 0.70 = $2.00.

Recipe for an example burger meal:

• 160 g beef patty (ground beef at $12 per kg): $1.92
• Burger bun: $0.40
• Cheddar slice: $0.35
• Sauce, lettuce, tomato, pickles: $0.38
• 150 g of cooked fries (usable cost $2.00 per kg): $0.30
• Allowance for frying oil: $0.15

Portion cost: $3.50. If the menu price is $11.00 (tax included), the net price is $10.00 and the food cost percentage is 35.0%. Without accounting for yield you would have costed the fries at $0.21; a difference that looks tiny grows across your whole menu and your whole month.

Food cost percentage and contribution margin for example items

The food cost percentage alone is not enough; you also need to look at the money an item leaves you, its contribution margin. Contribution margin = Net selling price − Portion cost. The table below uses example figures.

Look closely at the table: the burger meal, with the highest percentage, is the item that leaves you the most money per sale. Lemonade has a much lower percentage, yet it earns exactly the same amount as the latte. That is why you should judge your menu not on food cost percentage alone, but on percentage, contribution margin and sales volume together.

How to calculate food cost for a period

The theoretical food cost you calculate from recipes doesn't show what really happens in the kitchen. To see the actual figure, use this formula at the end of the month:

Actual food cost % = (Opening inventory + Purchases − Closing inventory) ÷ Net food and beverage sales × 100

Example: at the start of the month you have $8,000 of stock, you buy $24,000 during the month, and the month-end count shows $7,000 left. Ingredients used: $25,000. If your net sales (excluding tax) for the same month are $82,000, your actual food cost is 25,000 ÷ 82,000 = 30.5%.

If your theoretical percentage based on your menu mix is 28%, the 2.5-point gap is money lost in the kitchen: waste, spoilage, portion creep, unrecorded comps or counting errors. Tracking this gap every month shows you early where the problem is.

What is the ideal food cost percentage?

There is no single ideal food cost percentage that fits everyone. A range often quoted in the industry is roughly 25–35%, but treat it as a starting reference, not a rule. In a drinks-led café the percentage usually stays lower; in a restaurant focused on meat and seafood it can be higher. What really matters:

• Setting a percentage that still leaves a profit once your rent, staff and other costs are covered,
• Tracking that target item by item,
• Keeping the gap between theoretical and actual food cost small.

If you are in a high-rent location, you may need a lower food cost target. A business with low rent but labour-intensive kitchen work strikes a different balance. Consider all your costs together when you set your target.

How to set menu prices from food cost

Once you know your food cost, you can work out the menu price backwards. Choose a target percentage and divide the portion cost by it:

Net selling price = Portion cost ÷ Target food cost %

Menu price = Net selling price × (1 + tax rate)

Example: the latte costs $1.12 and your target is 28%, so the net price is 1.12 ÷ 0.28 = $4.00. Adding the 10% tax gives $4.40, which is what goes on the menu. For the cheesecake, with a cost of $1.68 and a 30% target, the menu price comes to about $6.16; you would round it to $6.10 or $6.20.

The calculation gives you a floor price. Before you make the final call, also consider:

• Local prices: who are your customers comparing you with?
• Contribution margin: you can feature items with a high percentage that still leave a lot of money per sale.
• Pairing: dessert with coffee, a drink with a meal; suggestions that grow the average ticket.
• Price increases: when key ingredients such as milk, coffee or meat go up, recalculate the affected items right away.

Practical ways to lower your food cost

• Standardise portions: use scales, measuring cups and recipe cards with photos. Eyeballing loses a few cents on every portion.
• Count stock regularly: a weekly count means fewer month-end surprises.
• First in, first out: use older stock first and keep track of expiry dates.
• Put trim to use: croutons from leftover bread, a sauce from fruit trimmings; they can come back onto your menu as new items.
• Record comps: unrecorded free items push up your actual food cost and make the cause harder to find.
• Compare supplier prices: get regular quotes for your key ingredients.

Common mistakes when calculating food cost

• Calculating with tax-inclusive prices: the percentage looks lower than it really is, and you don't notice that you are earning less.
• Skipping small items: cups, lids, napkins, sauces, garnishes and frying oil each look minor, but together they can make up a significant part of portion cost.
• Working with old purchase prices: if you calculate recipe cost once and leave it, price increases quietly eat into your profit. Update the calculation whenever key ingredient prices change.
• Ignoring yield: if you don't account for peeling, trimming and cooking loss, you will underestimate the cost of meat-, vegetable- and potato-heavy dishes.
• Looking only at the percentage: the item with the lowest percentage is not always the most profitable; look at contribution margin and sales volume together.
• Not counting stock: without a month-end stock count you can't know your actual food cost; settling for the theoretical figure hides losses.

Keep your food cost up to date

Food cost is not something you calculate once and forget; it needs updating whenever purchase prices change. In sipnik you enter an item's recipe once: every item sold is deducted from stock according to its recipe, the item's cost is calculated including waste, low-margin items are flagged, and a supplier order is prepared when stock runs low. The next question is which item sells how much: the sales report shows your top 50 items by revenue, your categories and your sales channels for any period you choose. Put it side by side with your own cost calculations and you can easily see which items to promote. For your POS and reports, Sip Your Brand!.