How can you tell if that restaurant you're eyeing is actually profitable? Many takeovers fail because buyers get dazzled by revenue numbers while ignoring food cost margins. The difference between a 30% and 45% food cost on €500,000 in sales? That's €75,000 in lost profit annually.
Why food cost history is crucial when taking over
A restaurant with €500,000 in revenue seems attractive. But if the food cost runs 45% instead of 30%, you're bleeding €75,000 a year in profit. That means you'll overpay for a struggling operation disguised as a goldmine.
💡 Example:
Restaurant A and B both generate €400,000 in revenue:
- Restaurant A: 28% food cost = €112,000 ingredient costs
- Restaurant B: 38% food cost = €152,000 ingredient costs
Difference: €40,000 per year in extra profit for restaurant A
Which documents you need to request
Smart sellers present their numbers transparently. You'll want at least 3 years of historical data:
- Annual accounts - official figures for revenue and costs
- VAT returns - confirmation of actual revenue
- Cash register reports - daily sales per period
- Purchase invoices - what was actually spent on ingredients
- Supplier overview - who are the regular suppliers and what are the prices
⚠️ Watch out:
Does the seller refuse to show these documents? Then they're probably hiding bad figures. Walk away from the negotiation.
How to calculate the real food cost
Don't trust the seller's calculations. Run your own numbers using this formula:
Food cost % = (Total food purchase costs / Revenue excl. VAT) × 100
💡 Calculation:
Restaurant with €300,000 in revenue incl. VAT:
- Revenue excl. 9% VAT: €300,000 / 1.09 = €275,229
- Food purchase costs: €95,000
- Food cost: (€95,000 / €275,229) × 100 = 34.5%
This runs high for most restaurants. Standard range is 28-33%.
Red flags in the food cost history
From analyzing actual purchasing data across different restaurant types, these warning signs typically indicate serious operational problems:
- Rising food cost - from 30% to 38% in 2 years
- Large fluctuations - one month 25%, another month 40%
- No recipe registration - chef cooks by feel without cost control
- Too many different suppliers - no buying power, higher prices
- Lots of cash purchases - no administration, possibly undeclared income
Analyze seasonal patterns
Examine monthly food cost data to spot seasonal trends. Summer terraces often show lower food costs due to increased beverage sales. Winter months featuring hearty stews typically run higher food costs.
💡 Seasonal example:
Terrace restaurant food cost per season:
- Summer (May-August): 28% food cost due to lots of drinks
- Winter (November-February): 35% food cost due to fewer guests
- In-between seasons: 31% food cost
Annual average: 30.5% - acceptable for this type of business
Compare with industry benchmarks
Different restaurant concepts operate with varying food cost standards:
- Fine dining: 28-35%
- Bistro/brasserie: 25-32%
- Pizzeria: 20-28%
- Café with food: 25-35%
- Delivery: 28-35%
Is the restaurant consistently running above these ranges? You're likely looking at problems with cost control, purchasing strategies, or recipe management.
Estimate improvement potential
High food costs aren't necessarily deal killers if you can prove there's room for optimization. Calculate what a 5 percentage point reduction could mean:
Potential profit increase = Food cost improvement × Annual revenue
💡 Improvement potential:
Restaurant with €400,000 in revenue and 38% food cost:
- Current food cost: 38%
- Target cost after improvement: 30%
- Improvement: 8 percentage points
Extra profit: 0.08 × €400,000 = €32,000 per year
⚠️ Watch out:
Don't automatically factor this improvement into your takeover bid. It takes time and effort to improve food cost, and results aren't guaranteed.
Digital support after takeover
Once you've closed the deal, gaining control over food costs becomes your top priority. Many new owners implement systems to record all recipes and automatically calculate cost prices. This prevents food costs from creeping back up after you've worked so hard to optimize them.
Check food cost history (step by step)
Gather 3 years of financial data
Request annual accounts, VAT returns, cash register reports and purchase invoices. Without these documents you can't do a reliable analysis.
Calculate the average food cost per year
Divide total food purchase costs by revenue excl. VAT and multiply by 100. Do this for each of the 3 years to see trends.
Compare with industry benchmarks
Check whether the food cost percentages fall within the standard range for this type of restaurant. Large deviations point to problems or opportunities.
Analyze seasonal patterns and trends
Look at monthly fluctuations and multi-year development. Rising food cost is a red flag, stable percentages are a good sign.
Calculate improvement potential and impact on takeover bid
Estimate how much the food cost can improve and what that's worth in euros per year. This helps you determine what the business is really worth.
✨ Pro tip
Focus extra attention on the most recent 8 months of data - many sellers temporarily reduce purchasing or inflate prices just before listing to make their margins look healthier than normal.
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
What if the seller can't show purchase invoices?
Then you can't perform a reliable food cost analysis. This is a major red flag - any professional restaurant maintains purchasing records. Consider walking away from the takeover.
Is a food cost of 40% always a deal breaker?
Not necessarily, but it signals serious problems. If you can prove this stems from poor purchasing or recipe management and you have a solid improvement plan, it might still work. Just don't count on quick fixes.
How long does it take to improve food cost after takeover?
With proper systems you'll see initial results within 3-6 months. Full optimization typically requires 12-18 months, especially if you're overhauling recipes and switching suppliers.
What if the food cost figures seem too good to be true?
Cross-reference cash register reports with VAT returns and request purchase invoices directly from suppliers. Some sellers manipulate figures to make their business appear more attractive than it really is.
📚 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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