Restaurant Food Cost Percentage: Calculate and Control

You're staring at last month's supplier invoices after a long close. Revenue looked decent. Then the numbers hit -- money leaking through your kitchen faster than it comes in. Understanding your restaurant food cost percentage is where you take back control.

If you're thinking "I sort of know what food costs should be, but I've never actually calculated mine properly" -- you're in good company. Most independent restaurant owners run on instinct until a bad quarter forces them to dig into the detail. This guide gives you the formula, the benchmarks, and the practical steps to get food costs under control.

What You'll Learn

• What a good restaurant food cost percentage looks like for different restaurant types
• The simple formula to calculate your restaurant food cost percentage
• How the 30/30/30 rule works as a restaurant food cost percentage benchmark
• Whether 32.8% food cost is acceptable (spoiler: it depends)
• Practical ways to reduce your restaurant food cost percentage without cutting quality

What Is a Good Food Cost Percentage for a Restaurant?

First, let's define the core metric. Restaurant food cost percentage is a method that measures the proportion of total revenue spent on ingredients and food supplies. A good restaurant food cost percentage for most venues falls between 28% and 35% of total revenue.

Here is how benchmarks typically break down:

• Fine dining: 30-35% (premium ingredients, higher menu prices offset)
• Casual dining: 28-32% (balance between quality and volume)
• Fast casual: 25-30% (simpler menus, bulk purchasing)
• Quick service: 25-28% (standardised portions, high volume)
• Pubs and gastropubs: 30-35% (varied menus, seasonal sourcing)

For example, a gastropub sourcing locally reared beef might run at 33%. That looks high compared to a burger chain. But the gastropub's gross profit per plate is actually higher because of higher menu prices.

If you're thinking "my food costs bounce around month to month and I can never pin them down" -- that's usually a sign you need better stock tracking, not necessarily cheaper ingredients. Consistency matters more than hitting a perfect number.

The Restaurant Food Cost Percentage Formula

Now that you know the benchmarks, let's get into the actual maths. The restaurant food cost percentage formula is straightforward, and every restaurant owner should be running this calculation at least monthly.

The formula:

Food Cost Percentage = (Cost of Goods Sold / Total Food Revenue) x 100

Where:

• Cost of Goods Sold (COGS) = Opening Stock + Purchases - Closing Stock
• Total Food Revenue = All food sales for the period (excluding drinks unless you combine them)

Worked Example

A small bistro calculates their monthly restaurant food cost percentage:

• Opening stock: £3,200
• Purchases: £8,500
• Closing stock: £2,800
• Food revenue: £28,000

COGS = £3,200 + £8,500 - £2,800 = £8,900

Food Cost % = (£8,900 / £28,000) x 100 = 31.8%

That bistro is running at 31.8% -- comfortably within the typical range for casual dining.

Click to enlarge

Working Backwards From a Target

If you want a specific restaurant food cost percentage, work backwards from menu pricing. For example, a Thai restaurant wanting to price a green curry might divide its ingredient cost by the target percentage to find the minimum menu price. This ensures every dish on the menu supports the overall target.

If you're only looking at purchase invoices without tracking opening and closing stock you'll always lose to competitors who know their actual COGS down to the penny. Your restaurant food cost percentage depends on accurate numbers, not guesswork.

What Is the 30/30/30 Rule for Restaurants?

Now that you can calculate your restaurant food cost percentage, here's a benchmark framework to put it in context. The 30/30/30 rule is a cost allocation framework that suggests restaurants should aim for roughly:

• 30% food costs -- ingredients and supplies
• 30% labour costs -- wages, NI, pensions, training
• 30% overheads -- rent, utilities, insurance, marketing
• 10% profit -- what's left after everything else

This is not a rigid rule. It is a sanity check. If your food and labour costs together exceed 65% of revenue, you are leaving very little room for overheads and profit. Something has to change.

These ranges are rules of thumb and vary by restaurant type and concept.

For example, a fish and chip shop might run food costs higher than average because fresh fish is expensive, but compensates with much lower labour costs since the operation is simpler.

Read more about how labour costs interact with food costs in our guide to restaurant labour cost percentage.

Is the 32.8% Food Cost Percent Acceptable?

With that framework in mind, let's tackle a specific number. This question comes up repeatedly on restaurant forums. The short answer: a 32.8% restaurant food cost percentage is acceptable for most casual and fine dining restaurants. It sits within the standard range and leaves room for healthy margins when other costs are controlled.

However, context is everything.

32.8% is healthy when:

• Your average cover price justifies premium ingredients
• Your labour and overhead costs are well controlled
• You are delivering consistent quality that justifies your prices

32.8% is a problem when:

• You're running a fast-casual concept where lower figures are standard
• Labour costs have also crept above healthy ranges simultaneously
• Waste is driving the number up rather than intentional ingredient quality

Ask yourself: would you feel confident showing your restaurant food cost percentage breakdown to an investor? If the answer is no, you need better data.

For example, a cafe owner might panic seeing 32.8%, but for a restaurant using premium, locally sourced ingredients and charging accordingly, that same number represents a deliberate choice.

What Should Cost of Goods Percentage Be for a Restaurant?

Building on your restaurant food cost percentage, let's broaden the picture. Cost of goods sold (COGS) includes both food and beverage costs. The standard combined COGS for a UK restaurant typically falls between 25% and 32%.

Drinks carry much higher margins than food:

• Alcoholic beverages typically run lower COGS than food
• Soft drinks offer the highest margins of all categories
• Blended COGS across food and drink is usually lower than food alone

For instance, a pub generating half its revenue from drinks has a much healthier blended number than a food-only restaurant. If you're only tracking your restaurant food cost percentage without looking at beverage margins, you are missing the full picture.

For a deeper look at how all your costs interact, explore our complete restaurant profit margin guide.

What Is a Good Profit Percentage for a Restaurant?

Here's the number everyone actually wants to know. The profit percentage approach is a framework that assesses your net margin -- typically between 5% and 15% of total revenue for UK restaurants (Deloitte, 2025).

For example, a casual dining restaurant keeping its restaurant food cost percentage at 30% and labour at 28% has a solid foundation for double-digit profit margins. A venue where both numbers have crept higher is often left with slim margins.

The relationship between food costs, labour costs, and break-even point determines whether your profit margin is sustainable or just lucky.

How to Reduce Your Restaurant Food Cost Percentage

So you've calculated your restaurant food cost percentage and it is too high. Here's what to do about it. These strategies work for most UK restaurants without sacrificing the quality that keeps customers coming back.

1. Menu Engineering

For example, a pizza restaurant might discover its margherita is hugely popular but barely profitable, while its seafood linguine has great margins but rarely gets ordered. Review every dish by its food cost percentage and popularity:

• Stars (high profit, high popularity) -- Promote these aggressively
• Puzzles (high profit, low popularity) -- Improve positioning on menu
• Plough horses (low profit, high popularity) -- Reduce portions slightly or renegotiate ingredient costs
• Dogs (low profit, low popularity) -- Remove from menu

2. Portion Control

Standardise recipes with exact weights. A chef adding "a generous handful" of prawns to every dish can swing your restaurant food cost percentage significantly over a month. Spec cards with gram weights remove guesswork.

3. Supplier Negotiation

Review supplier contracts quarterly. Get quotes from at least three suppliers for your highest-cost ingredients. Even a small reduction on your top items can shift your overall restaurant food cost percentage noticeably.

4. Waste Tracking

Track waste daily in three categories: prep waste, spoilage, and plate waste. Many restaurants lose a significant portion of purchased food to waste (WRAP, 2025). Reducing that directly improves your restaurant food cost percentage.

5. Stock Management

Run weekly stock takes rather than monthly. Monthly stocktaking means you only discover problems after 30 days of losses. Weekly checks catch issues before they compound. If you're only running monthly stocktakes without weekly checks you'll always lose to competitors who catch waste and theft early. Stop guessing and start counting.

Actionable Checklist

• Calculate your current food cost percentage using the formula above
• Compare against benchmarks for your restaurant type
• Run a menu engineering analysis (star, puzzle, plough horse, dog)
• Standardise your top 10 dish recipes with gram-weight spec cards
• Get competing quotes for your five highest-cost ingredients
• Implement daily waste tracking by category
• Switch to weekly stock takes
• Review and adjust menu prices against current supplier costs

Minimum Viable Action Plan

Finally, here's the simplest starting point. If you only have 30 minutes a week to work on your restaurant food cost percentage, start here:

This week, get a baseline on your food costs:

1. Day 1-2: Gather your last month's supplier invoices and total your food purchases. Check your opening and closing stock values from your last count.
2. Day 3-4: Pull your total food revenue from your POS system. Apply the formula: (Opening Stock + Purchases - Closing Stock) / Food Revenue x 100.
3. Day 5-7: Compare your result against the benchmarks in this guide. Identify the single biggest area for improvement -- waste, pricing, or supplier costs.

One number. One comparison. One action. That is enough to start.

Frequently Asked Questions

What is the basic food cost ratio?

The basic food cost ratio is a method that expresses the cost of goods sold as a proportion of total food revenue. Most UK restaurants aim for a ratio between 0.28 and 0.35, depending on concept and pricing.

What is the formula for food cost percentage for restaurants?

The food cost percentage formula is a method that divides your cost of goods sold by total food revenue: (Opening Stock + Purchases - Closing Stock) / Total Food Revenue x 100. Run this monthly to track trends.

What is a good food cost percentage for catering?

A good food cost percentage for catering is a principle that targets lower numbers than dine-in restaurants, typically in the twenties. Catering benefits from advance ordering and batch preparation. However, labour and transport costs are typically higher, so overall margins tend to balance out.

How often should I calculate food cost percentage?

Calculate your restaurant food cost percentage at least monthly, but weekly is better for active cost management. Weekly calculations require weekly stock takes -- about 30-45 minutes -- but give you four times the visibility into cost trends.

Does food cost percentage include drinks?

Restaurant food cost percentage typically refers to food only. Beverage cost percentage is usually calculated separately because drinks carry much higher margins. Combined food and beverage COGS gives you your total cost of goods sold percentage, which is a different and equally important metric.