Most restaurant owners chase volume instead of profit margins. Here's how to identify which dishes actually drive your bottom line and which ones are secretly draining your earnings.
Most restaurant owners chase volume instead of profit margins. You'll push the pasta because it flies out of the kitchen, but that €2.40 profit per plate pales next to the €9.80 your slower-selling lamb generates. Smart operators track contribution, not just covers.
The difference between popularity and profitability
Popularity counts portions sold. Profitability counts euros earned after all costs. Your crowd-pleaser might be priced low, portioned generously, or just taste incredible. None of that guarantees it's making you money.
💡 Example:
Restaurant De Smulhoek has two bestsellers:
- Pasta Carbonara: 120 portions/week, €2.80 profit per portion
- Special Steak: 45 portions/week, €8.50 profit per portion
Total profit per week:
- Pasta: 120 × €2.80 = €336
- Steak: 45 × €8.50 = €382.50
The steak generates more profit, even though it sells less frequently.
Calculate the profit margin per dish
Start with your selling price excluding VAT. Subtract ingredient costs and labor. What's left is your actual profit per portion.
Formula for profit margin per portion:
Profit margin = Selling price excl. VAT - Ingredient costs - Labor costs per portion
⚠️ Note:
Always calculate using the selling price excluding VAT. For hospitality, that's usually 9% VAT. A dish priced at €32.00 incl. VAT is €29.36 excl. VAT (€32.00 ÷ 1.09).
Calculate total profit contribution
Multiply your per-portion profit by actual sales volume. This reveals which dishes truly drive your financial results over time.
Formula for total profit contribution:
Total profit = Profit margin per portion × Number of portions sold
💡 Example calculation:
Grilled salmon - 80 portions per week:
- Selling price: €26.50 incl. VAT = €24.31 excl. VAT
- Ingredient costs: €8.20 per portion
- Labor costs: €3.50 per portion
Profit margin per portion: €24.31 - €8.20 - €3.50 = €12.61
Total profit per week: €12.61 × 80 = €1,008.80
Compare your top dishes
Pull data on your 5-10 highest-volume dishes. Run the numbers on profit per portion and total weekly contribution. You'll spot patterns that most operators miss completely. I've seen restaurants discover their "signature dish" was actually costing them €200-400 per month in lost profit opportunity.
- Rank by number of portions sold (popularity)
- Rank by profit margin per portion (efficiency)
- Rank by total profit contribution (impact on results)
The dish with the highest total profit contribution deserves prime real estate on your menu and in your staff's recommendations.
💡 Real-world example:
Top 3 dishes at Brasserie Het Plein:
- 1. Schnitzel (most popular): 150 portions, €4.20 profit = €630/week
- 2. Entrecote (highest margin): 60 portions, €11.80 profit = €708/week
- 3. Salmon fillet (overall winner): 90 portions, €9.40 profit = €846/week
The salmon fillet is the most profitable, even though it's not the most popular.
What do you do with these insights?
Now you can make decisions based on actual profit data instead of gut feelings:
- Promote profitable dishes: Feature them prominently on the menu
- Train your staff: Have them recommend the profitable options
- Optimize recipes: See if you can reduce costs for popular but less profitable dishes
- Reconsider your menu: Dishes that sell poorly and generate little profit can be removed
Food cost calculators can automate these calculations so you're always working with current profitability data.
How do you calculate which dish is most profitable?
Gather data from your top dishes
Note down for your 5-10 best-selling dishes: selling price, ingredient costs per portion, and number of portions sold per week. Get this data from your POS system and recipes.
Calculate the profit margin per portion
Subtract the ingredient costs and labor costs per portion from the selling price (excl. VAT). This gives you the net profit margin per sold portion.
Calculate the total profit contribution
Multiply the profit margin per portion by the number of portions sold per week. The dish with the highest total profit contribution is your real star.
Compare and rank your dishes
Create a list ranked by total profit contribution. Focus your marketing and menu positioning on the dishes at the top.
✨ Pro tip
Track your profit per square centimeter of menu space. High-contribution dishes earning only 2cm of description while low-profit items get full paragraphs means you're literally paying rent to promote the wrong food.
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 labor costs in the calculation?
Absolutely. Budget €3-4 per portion for prep and service time. A 20-minute risotto costs more in labor than a 5-minute salad, even if ingredients are similar.
What if my most popular dish generates little profit?
Try reducing costs first - smaller portions, cheaper proteins, or seasonal substitutions. If that doesn't work, test a modest price increase on your next menu revision.
Can a dish be too profitable?
If you're hitting 70%+ profit margins, your pricing might be aggressive enough to hurt sales volume. Balance margin with market acceptance.
📚 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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