A dish that sells little can still be profitable, but you need to calculate differently. Many restaurant owners drop dishes too quickly that only sell 2-3 times per week, while these can actually have golden edges. The trick is calculating whether the fixed costs outweigh the margin per portion.
Why small volumes work differently
With dishes that sell little, it's not about volume, but about margin per portion. A dish that sells 3 times per week for €45 with €12 food cost generates more than a dish that sells 20 times for €18 with €7 food cost.
💡 Example:
Dish A: Lamb roast (3x per week)
- Selling price: €45.00 incl. VAT (€41.28 excl.)
- Food cost: €12.00
- Margin per portion: €29.28
- Weekly revenue: 3 × €41.28 = €123.84
Margin per week: €87.84
💡 Comparison:
Dish B: Pasta (20x per week)
- Selling price: €18.00 incl. VAT (€16.51 excl.)
- Food cost: €7.00
- Margin per portion: €9.51
- Weekly revenue: 20 × €16.51 = €330.20
Margin per week: €190.20
Dish B generates more, but dish A has a food cost of just 29% compared to 42% for dish B.
The hidden costs of low sales volume
Small volumes have specific cost items you need to include:
- Inventory risk: Ingredients that spoil because you buy too much
- Mise-en-place time: Prep time that doesn't scale proportionally
- Menu space: Every line on your menu costs conversion
- Knowledge investment: Your team needs to know and be able to explain the dish
⚠️ Note:
Factor in at least 15 minutes of extra prep time per dish per day, even if you only sell it once. That time costs money.
Break-even calculation for small volumes
For a dish that sells little, you need a different break-even formula:
Minimum sales per week = (Fixed costs per week + Inventory risk) / (Selling price excl. VAT - Food cost)
💡 Calculation:
Lamb roast example:
- Fixed costs (prep, knowledge): €25 per week
- Inventory risk (spoilage): €15 per week
- Margin per portion: €29.28
Break-even: (€25 + €15) / €29.28 = 1.4 portions per week
Conclusion: At 3 sales per week you're well in profit
Season and ingredient availability
Dishes with low volume are often seasonal or dependent on premium ingredients. Therefore calculate per season:
- High season: Ingredient available, normal price
- Low season: Ingredient expensive or unavailable
- Average profitability: Weight both periods
A dish that generates €30 margin per portion for 6 months per year and can't be sold for 6 months has an average margin of €15 per portion over the whole year.
When to drop and when to keep
Only drop a dish if:
- It sells less than 1 time per week
- The food cost is above 40%
- Ingredients regularly spoil
- Your team doesn't have confidence in it
Keep a dish if:
- It sells at least 2 times per week
- The margin per portion is above €20
- It differentiates your restaurant
- Guests specifically ask for it
How do you calculate feasibility? (step by step)
Calculate the actual food cost
Add up all ingredients including garnish and sauces. Also factor in 10-15% waste for premium ingredients that spoil quickly. Divide by the selling price excluding VAT to get your food cost percentage.
Estimate fixed costs per week
Factor in at least 15 minutes of prep time per day (€8-12 per week) plus knowledge costs for your team. Add inventory risk: how many ingredients spoil on average per week?
Determine the break-even point
Divide your total fixed costs by the margin per portion (selling price minus food cost). This gives you the minimum number of sales per week to break even.
Measure actual sales for 4 weeks
Track how many you actually sell and how many ingredients spoil. Compare this with your break-even calculation to see if the dish is profitable.
✨ Pro tip
Keep a 'premium logbook': note each week how much you sell of expensive dishes and how many ingredients spoil. After a month you'll see the pattern and can optimize your purchasing.
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 many times per week must a dish sell minimum to be profitable?
That depends on the margin per portion. A dish with €30 margin can be profitable at 1-2 sales per week. A dish with €8 margin needs 5-10. Calculate your break-even point based on fixed costs divided by margin.
Should I calculate premium ingredients differently than standard ingredients?
Yes, factor in 10-15% extra for spoilage and waste with premium ingredients. Truffle, oysters and fresh herbs have higher risk than potatoes or onions. Also, your ordering frequency is different: you can't order weekly.
When is a dish too expensive for my target audience?
If you have more than 40% food cost and still struggle to sell it, the price is probably too high for your target audience. Try cheaper alternatives for expensive ingredients or smaller portions with the same presentation.
How do I prevent ingredients from spoiling with low sales?
Buy smaller quantities more frequently, even if you pay more per kilo. Partner with other restaurants for joint purchasing of premium products. Or use ingredients in multiple dishes.
Is it better to sell an expensive dish 3 times or a cheap dish 15 times?
It depends on the total margin. Calculate: (number of sales × margin per portion) minus fixed costs. The dish with the highest net margin per week is financially best, regardless of volume.
📚 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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