Most restaurant owners think their bestsellers are their biggest moneymakers. They're usually wrong. A dish that flies off the menu can drain your profits while a slower seller quietly fills your bank account.
Most restaurant owners think their bestsellers are their biggest moneymakers. They're usually wrong. A dish that flies off the menu can drain your profits while a slower seller quietly fills your bank account.
Why profitability per dish matters
You can pack your restaurant every night and still struggle to pay bills. That's because popular dishes often carry razor-thin margins, while your real profit drivers sit ignored on the menu.
💡 Example:
Restaurant De Smaak sells per week:
- Steak: 50 portions at €32.00 (food cost 40%) = €960 revenue, €576 profit
- Pasta: 80 portions at €18.50 (food cost 25%) = €1,360 revenue, €918 profit
The pasta contributes more to profit, despite the lower price.
The three numbers you need
Every profit analysis starts with the same foundation:
- Food cost percentage: What percentage of your selling price goes to ingredients
- Number sold: How many portions do you sell per week/month
- Selling price: What's on the menu (excl. VAT for calculations)
These three numbers reveal your profit contribution per dish. Everything else is just math.
Calculating profit contribution
The formula for profit contribution is:
Profit contribution = (Selling price excl. VAT - Ingredient costs) × Number sold
💡 Example calculation:
Teriyaki salmon - 30 portions per week:
- Menu price: €26.50 incl. VAT
- Price excl. VAT: €26.50 / 1.09 = €24.31
- Ingredient costs: €8.20
- Profit per portion: €24.31 - €8.20 = €16.11
Profit contribution per week: €16.11 × 30 = €483.30
Ranking dishes by profitability
Create a spreadsheet with all your dishes and their profit contributions. Sort from highest to lowest. Your top performers are your profit makers.
⚠️ Note:
A dish with stellar margins but weak sales often contributes less than a dish with modest margins but strong sales. Total profit contribution trumps percentage every time.
Menu engineering matrix
Smart restaurant operators categorize dishes into four buckets:
- Stars: High profit margin + popular
- Workhorses: Low profit margin + popular
- Puzzles: High profit margin + not popular
- Dogs: Low profit margin + not popular
Push your Stars harder and figure out why Puzzles aren't selling. I've seen this mistake cost the average restaurant €200-400 per month — owners promoting their worst performers while neglecting their goldmines.
💡 Real-world example:
Bistro Het Plein discovered that their homemade burger (€15.50, food cost 22%) generated more profit than their expensive ribeye (€38.00, food cost 45%):
- Burger: 60 portions/week × €11.12 profit = €667
- Ribeye: 15 portions/week × €17.28 profit = €259
They started promoting the burger instead of the ribeye.
Digital tracking vs. manual
Crunching these numbers by hand eats up hours and breeds errors. Modern systems automatically calculate:
- Food cost per dish based on current purchase prices
- Profit contribution per dish
- Ranking of most profitable items
- Menu engineering matrix
You get instant clarity on which dishes build wealth and which ones destroy it.
How do you analyze your profitability? (step by step)
Collect sales data per dish
Go through your POS system and count how many of each dish you sold over the past month. Also note the selling price per dish.
Calculate ingredient costs per portion
Add up all the ingredients that go into each dish: main ingredient, garnish, sauce, oil, butter. Use current purchase prices from your suppliers.
Calculate profit contribution per dish
Subtract ingredient costs from selling price (excl. VAT) and multiply by number sold. This gives you the total profit contribution per dish.
Rank dishes by profit contribution
Make a list from high to low profit contribution. Your top 5 are your real money makers. Focus marketing and menu positioning on these dishes.
✨ Pro tip
Track your profit per square inch of menu real estate. That premium spot in the top-right corner should showcase your highest-contributing dish, not your chef's personal favorite.
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 profit calculation?
No, always calculate with prices excluding VAT. The VAT on your menu (9% for food) goes straight to the tax authority — that's not your profit.
What's a good food cost for profitable dishes?
For restaurants, aim for 28-35% food cost. Below 30% is excellent territory. Above 35% makes it tough to cover rent, staff, and everything else.
How often should I do this analysis?
Monthly at minimum, but weekly is better. Supplier prices shift, seasons change, and customer preferences move around. More frequent measuring means faster adjustments.
What if my most popular dish barely makes money?
Try reducing ingredient costs without killing quality first. If that fails, either raise the price or bury it deeper in your menu layout.
Do I include labor costs in this calculation?
No, this measures direct profit contribution per dish only. Staff wages, rent, and fixed costs get subtracted later for your actual business profit.
Does this work for cocktails and wine too?
Absolutely, same principle applies. Just remember alcoholic beverages carry 21% VAT instead of 9%, so adjust your calculations accordingly.
📚 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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