Last month, a pizzeria owner discovered his €14.95 combo deal was actually costing him €6.20 in ingredients – a devastating 41% food cost. Unlike single dishes, combo deals require adding up multiple component costs before calculating your percentage. Most restaurant owners underestimate the true ingredient costs hiding in these bundled offers.
Why combo deals are different
With a combo deal you're selling multiple products for one price. Each component has its own cost price, but together they form one dish on your receipt. The challenge is correctly adding up all components and calculating the total food cost.
💡 Example:
Burger combo for €16.50 (incl. 9% VAT) consists of:
- Burger: €4.20 ingredient costs
- Fries (200g): €0.80 ingredient costs
- Cola (0.33L): €0.45 ingredient costs
Total ingredient costs: €5.45
The formula for combo food cost
The calculation works the same as with individual dishes, but you add all components together:
Combo food cost % = (Total ingredient costs / Selling price excl. VAT) × 100
Don't forget to convert the selling price to exclude VAT. For food in restaurants that's 9% VAT.
💡 Example calculation:
Burger combo €16.50 incl. VAT:
- Selling price excl. VAT: €16.50 / 1.09 = €15.14
- Total ingredient costs: €5.45
- Food cost: (€5.45 / €15.14) × 100 = 36.0%
That's on the high side for a combo deal.
Common mistakes in combo calculations
Most mistakes happen because entrepreneurs forget components or underestimate them. And here's something you only learn after closing your first month at a loss: those "small" components add up fast.
- Underestimating fries: 200 grams of fries often costs €0.60-€1.00, not €0.20
- Forgetting drinks: Cola from the tap costs €0.30-€0.50 per glass
- Not counting sauces: Mayonnaise, ketchup, dressing also count
- Skipping garnish: Lettuce, tomato, pickle on the burger
⚠️ Note:
Always calculate with the selling price excluding VAT. Many entrepreneurs use the price including VAT, which makes their food cost appear lower than it actually is.
Optimizing combo deals
If your combo food cost is too high (above 35%), you have three options:
- Raise the price: Often the easiest solution
- Adjust portions: Less fries or smaller burger
- Cheaper ingredients: Different supplier or different brand
💡 Optimization example:
Reducing combo with 36% food cost to 30%:
- Current price: €16.50 (€5.45 costs)
- New price for 30%: €5.45 / 0.30 = €18.17 excl. VAT
- Menu price: €18.17 × 1.09 = €19.80
Or: reduce costs to €4.54 at the same price.
Digital help with combo calculations
Calculating combo deals manually takes time and is error-prone. With a system like KitchenNmbrs you can enter each component as a separate ingredient and have the total food cost calculated automatically. This way you immediately see if your combo is profitable.
How do you calculate combo food cost? (step by step)
Calculate cost price per component
List all components of your combo and calculate the ingredient costs of each component separately. Don't forget garnish, sauces or side dishes.
Add all costs together
Sum all ingredient costs of the different components. This gives you the total cost price of the combo deal.
Convert selling price to excl. VAT
Divide your menu price by 1.09 to get the price excluding VAT. This is important for a correct food cost calculation.
Calculate the food cost percentage
Divide the total ingredient costs by the selling price excluding VAT and multiply by 100 for the percentage.
✨ Pro tip
Track your top 5 combo deals weekly for 30 days to spot cost creep from portion drift. You'll often find staff gradually increasing fries or drink sizes, pushing your food costs up 3-5% without you noticing.
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
Should I include VAT in my combo food cost calculation?
No, always calculate with the selling price excluding VAT. The price on your menu includes 9% VAT for food, but food cost calculations require the net price. Using the VAT-inclusive price makes your food cost appear artificially low.
How do I account for fries in a combo deal?
Calculate the cost price per portion of fries based on actual weight served. A 200-gram portion typically costs €0.60-€1.00 in ingredients, including potatoes and frying oil. Don't forget to factor in oil absorption during cooking.
What if different combo sizes use the same drink but different food portions?
Calculate each combo size separately since the food costs differ while drink costs stay constant. Your small combo might hit 28% food cost while the large version reaches 35% due to bigger portions.
📚 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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