Your trusted supplier calls with news: they're out of your usual grade beef, but premium cuts are available. Without proper calculation, you'll watch your margins evaporate while thinking everything's fine. Here's how to crunch the numbers and protect your profitability.
Why quality class destroys your margin
You've budgeted steak at €24/kg, but now you're paying €32/kg for premium. That €8 difference looks harmless until you multiply it across thousands of portions.
? Example:
You serve 50 steaks weekly at 200g portions:
- Standard grade: €24/kg = €4.80 per portion
- Premium grade: €32/kg = €6.40 per portion
- Cost difference: €1.60 per portion
Annual impact: €1.60 × 50 × 52 = €4,160 in lost profit
Food cost percentage takes the hit
Higher ingredient costs automatically spike your food cost percentage. Keep the same menu price? Your margin shrinks fast.
? Real numbers:
Steak priced at €28.00 incl. VAT (€25.69 excl. VAT):
- Standard ingredients: (€4.80 / €25.69) × 100 = 18.7% food cost
- Premium ingredients: (€6.40 / €25.69) × 100 = 24.9% food cost
Food cost jumps 6.2 percentage points - that's massive!
Three paths forward
You've got three choices when quality grades change:
- Adjust pricing: Raise menu prices to maintain your target margin
- Absorb costs: Accept reduced profitability temporarily
- Source elsewhere: Find suppliers offering your preferred grade
⚠️ Reality check:
From tracking this across dozens of restaurants, small per-unit increases compound into profit-killing annual costs. Calculate everything.
Math for price adjustments
Want to preserve your margin? Calculate the minimum selling price needed:
Formula: New selling price excl. VAT = New ingredient cost / (Target food cost % / 100)
? Working example:
Maintaining 30% food cost with €6.40 ingredient cost:
- Required price excl. VAT: €6.40 / 0.30 = €21.33
- Required price incl. 9% VAT: €21.33 × 1.09 = €23.25
Your current €28.00 price can handle the upgrade cost.
Evaluating quality upgrades
Not every premium ingredient justifies the cost. Consider these factors:
- Do customers actually taste the difference?
- Does premium quality match your restaurant's positioning?
- Can you pass costs to customers without losing volume?
Premium ingredients differentiate you from competitors, but only when customers value and pay for the upgrade.
How do you calculate the margin with a different quality class?
Calculate the cost difference per portion
Subtract the new purchase price per kg from the old price. Multiply this by the weight per portion. This gives you the difference in ingredient costs per dish.
Calculate the new food cost percentage
Divide the new ingredient costs by your current selling price excl. VAT and multiply by 100. This shows your new food cost percentage.
Determine your new selling price
If you want to maintain the same margin, divide your new ingredient costs by your desired food cost percentage (as a decimal). Multiply by 1.09 for the price incl. VAT.
✨ Pro tip
Track quality upgrades across your top 8 menu items monthly. A €1.50 per-portion increase on popular dishes can cost €15,000+ annually if you don't adjust pricing within 4 weeks.
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 much can my food cost increase due to better quality?
Do I always have to raise my menu price for more expensive ingredients?
How do I explain price increases to guests?
Can I temporarily accept a lower margin?
Should I include VAT in my food cost calculation?
What if my supplier permanently switches to higher quality grades?
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
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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