Calculate actual food cost percentage for each dish, compare against your target percentage, then adjust through cheaper sourcing, smaller portions, or higher prices. Focus on high-volume dishes first for maximum impact.
Over 60% of restaurant owners can't tell you their actual food cost percentage within 3 points of accuracy. They're flying blind on their most controllable expense, watching profits leak out through portion creep and supplier price increases. Here's how to get precise numbers and stop the bleeding.
Why food cost control is essential
You can set ambitious targets all day long, but without tracking them, you're just hoping for the best. Food cost is the one expense line you directly control through purchasing, portioning, and pricing decisions.
⚠️ Watch out:
Too many owners guess at their food cost. "It's probably around 30%." But guessing is expensive. Every percentage point you're off target costs real money.
Calculate your current food cost
Before comparing against targets, you need to know where you actually stand. Use this formula for each dish:
Food cost % = (Ingredient costs / Selling price excl. VAT) × 100
💡 Example:
Your pasta carbonara sells for €22.00 including 9% VAT.
- Selling price excl. VAT: €22.00 / 1.09 = €20.18
- Ingredient costs: €6.50
Food cost: (€6.50 / €20.18) × 100 = 32.2%
Set your target food cost
Don't have targets yet? Start with these industry benchmarks:
- Fine dining: 28-35%
- Casual dining: 28-35%
- Bistro/brasserie: 25-32%
- Pizzeria: 20-28%
- Café food: 25-35%
Pick a percentage that matches your concept and apply it to your core menu items. These become your non-negotiable targets.
Spot deviations
Now comes the comparison. Calculate how far off you are:
Deviation = Actual food cost % - Target food cost %
💡 Example:
Using the pasta carbonara numbers:
- Actual food cost: 32.2%
- Target food cost: 28%
- Deviation: 32.2% - 28% = +4.2 percentage points
You're 4.2 points over target. That's bleeding money.
Calculate the impact of deviations
A few percentage points might seem minor, but they compound fast. Here's the annual damage:
Impact per year = Deviation × Annual revenue from this dish
💡 Example:
Continuing with the pasta scenario:
- Deviation: 4.2 percentage points (0.042)
- Pasta sales: 8 per week × 50 weeks = 400 units
- Pasta revenue: 400 × €20.18 = €8,072
Annual impact: 0.042 × €8,072 = €339 lost on one dish alone
Set priorities
Focus your energy where it matters most. High-volume dishes deliver the biggest wins:
- List your top 5 volume sellers
- Calculate each dish's food cost percentage
- Identify which ones miss their targets worst
- Attack the dish with the largest financial impact first
One of the most common blind spots in kitchen management is treating all menu items equally. But fixing a dish you sell twice a week won't move the needle like fixing one you sell twenty times.
Adjust to your target
Three levers can bring you back on target:
- Source cheaper ingredients: New suppliers, seasonal swaps, bulk purchasing
- Reduce portion sizes: 200g protein instead of 250g, smaller sides
- Increase menu prices: Add €1-2 to cover the gap
⚠️ Watch out:
Price increases work fastest but test customer reaction carefully. Roll them out on a few items first before touching your whole menu.
Set up regular monitoring
Food cost control isn't a one-and-done project. Build these checkpoints into your routine:
- Weekly: Review your top 3 dishes
- Monthly: Complete menu audit
- Price changes: Recalculate affected dishes immediately
- New menu items: Set food cost targets before launch
Tools like KitchenNmbrs automate these calculations, showing you which dishes drift from target without manual number-crunching.
How do you check your food cost? (step by step)
Calculate your current food cost
Add up all ingredient costs of your dish. Divide this by your selling price excl. VAT and multiply by 100. This gives you your current food cost percentage.
Set your target food cost
Determine what food cost percentage fits your type of establishment. Fine dining: 28-35%, casual dining: 28-35%, bistro: 25-32%. Choose a realistic target.
Calculate the deviation
Subtract your target food cost from your actual food cost. A positive number means you're above your target. A negative number means you're below your target.
Calculate the financial impact
Multiply your deviation (as a decimal) by the annual revenue of this dish. This shows how much money you're losing or saving compared to your target.
Set priorities and adjust
Focus on your best-selling dishes with the biggest deviation. Adjust ingredients, portions, or prices until you're within your target food cost.
✨ Pro tip
Run a 72-hour spot check on your three highest-volume dishes. Track every plate that goes out and calculate the actual ingredient cost versus your recipe cards. You'll often find 2-3 percentage points of variance just from inconsistent portioning.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
How often should I check my food cost?
Check your top 3 dishes weekly and your full menu monthly. Recalculate immediately whenever supplier prices change or you adjust portions.
What if my food cost is higher than my target?
You have three options: source cheaper ingredients, reduce portion sizes, or raise menu prices. Test which approach works best for your market and concept.
Should I calculate food cost with or without VAT?
Always exclude VAT from your calculations. If your menu price is €22 with 9% VAT, divide by 1.09 to get €20.18 for the formula.
What if my food cost is below target?
That's profit in your pocket! Just verify your portions aren't too small for customer satisfaction and your prices aren't pushing guests away.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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