Your top three products can determine 60-80% of your profit. Most restaurant owners can't pinpoint which dishes actually make money versus those bleeding cash. You're about to discover exactly how your bestsellers impact your bottom line.
Why your top three matter so much
Most restaurants have a few dishes that dominate sales. These 'stars' might fly out 100+ times per week, while other items barely move 10 portions.
The problem: if your stars don't generate solid profit, you're churning out revenue but seeing minimal results. But flip that equation - one profitable star can carry your entire month.
💡 Example:
Restaurant De Smaak sells per week:
- Steak (star 1): 120 portions at €28.00
- Salmon (star 2): 85 portions at €24.00
- Pasta carbonara (star 3): 95 portions at €16.50
Together: 300 out of 450 total covers = 67%
What you need for the calculation
For each star, gather this data:
- Selling price excl. VAT (menu price / 1.09)
- Ingredient costs per portion (everything that goes on the plate)
- Number sold per week/month
- Labor time per dish (optional, for refinement)
⚠️ Note:
Always calculate with the price excl. VAT. That €28.00 menu price includes 9% VAT, so it becomes €25.69 for your calculation.
The profit contribution formula
For each dish you calculate:
Profit contribution per portion = Selling price excl. VAT - Ingredient costs
Total profit contribution = Profit contribution per portion × Number sold
💡 Example calculation:
Steak from Restaurant De Smaak:
- Menu price: €28.00 incl. VAT
- Excl. VAT: €28.00 / 1.09 = €25.69
- Ingredient costs: €8.50
- Sold per month: 480 portions
Profit contribution per portion: €25.69 - €8.50 = €17.19
Total monthly profit contribution: €17.19 × 480 = €8,251
Calculate percentage of total profit
To see what share of your profit comes from your stars:
Share of profit = (Profit contribution dish / Total profit contribution) × 100
Add up the profit contribution of all your dishes to get your total profit contribution.
💡 Complete example:
Restaurant De Smaak per month:
- Steak: €8,251 profit contribution
- Salmon: €5,440 profit contribution
- Pasta: €3,420 profit contribution
- Other 15 dishes: €4,889 profit contribution
Total profit contribution: €22,000
Top 3 together: (€17,111 / €22,000) × 100 = 78%
What these numbers tell you
If your top three deliver more than 70% of your profit, you've got goldmines. Every tweak to these dishes creates massive impact.
- High profit contribution + popular: Perfect, push these dishes harder
- Low profit contribution + popular: Raise the price or cut ingredient costs
- High profit contribution + not popular: Find ways to boost sales
- Low profit contribution + not popular: Consider axing from the menu
⚠️ Note:
A dish with low profit contribution might still work as a 'loss leader' to draw customers. Always consider the bigger picture.
Actions based on your analysis
From analyzing actual purchasing data across different restaurant types, these insights drive smart decisions:
- Bump prices on popular dishes with thin margins
- Source cheaper ingredients for your stars
- Train your team to upsell more profitable dishes
- Position your most profitable dishes prominently on the menu
- Run special promotions around your top performers
Tools like KitchenNmbrs calculate these profit contributions automatically and show you which dishes generate the most, without endless Excel spreadsheets.
How do you calculate the role of your top three? (step by step)
Identify your three bestsellers
Check your POS system or manually note which three dishes you sell most often. Count the number of portions sold per week or month for each dish.
Calculate profit contribution per portion
For each dish: subtract the ingredient costs from the selling price excl. VAT. This gives you the profit contribution per portion for each of your stars.
Multiply by sales quantities
Profit contribution per portion × number sold = total profit contribution per dish. Add up the three amounts and divide by your total profit contribution for the percentage.
✨ Pro tip
Run this analysis on your last 8 weeks of sales data, then cross-reference with your lowest-selling high-margin items. You'll often find hidden gems that need just minor menu positioning tweaks to become profit drivers.
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 time in the calculation?
For a quick analysis, ingredient costs work fine. If you want precision, add preparation time × hourly wage of your kitchen team.
What if my stars generate little profit?
Then you're spinning wheels - lots of revenue, minimal profit. Raise prices, find cheaper ingredients, or shrink portion sizes. Sometimes removing a popular but unprofitable dish makes more sense.
How often should I do this analysis?
Every 3 months minimum, or after any menu changes. Ingredient prices shift and seasonal preferences can flip your profit stars overnight.
What's a good percentage for my top three?
60-80% is typical. Under 60% means your profit's too scattered. Over 80% makes you vulnerable if those dishes lose popularity.
📚 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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