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📝 Anyone who sells food · ⏱️ 2 min read

How do I know which products drive sales but deliver little profit?

📝 KitchenNmbrs · updated 13 Mar 2026

Picture this: your busiest dish brings crowds through the door but leaves your bank account empty. These deceptive menu items generate impressive sales figures while quietly draining your profits. The solution lies in analyzing both popularity and actual margins together.

The hidden loss leaders

Your best-selling dish could be your biggest problem. It drives sales, guests love ordering it, but at month's end there's nothing left. This happens because you're tracking the wrong metrics.

💡 Example:

Restaurant The Golden Spoon sells 120 pasta carbonaras per week at €18.50 each:

  • Weekly pasta sales: 120 × €18.50 = €2,220
  • Ingredient cost per portion: €7.80
  • Food cost: (€7.80 / €16.97*) × 100 = 46%

*€18.50 / 1.09 = €16.97 excl. VAT

This pasta drives €115,000 in annual sales, but has a food cost of 46%. That's way too high.

The difference between sales and profit

Sales is what flows in. Profit is what remains. A dish can generate massive sales but deliver minimal profit because of:

  • Excessive food costs - Premium ingredients or oversized portions
  • Underpriced menu items - Prices not updated after cost increases
  • High waste levels - Ingredients that spoil quickly
  • Labor intensive prep - Excessive preparation time per portion

One of the most common blind spots in kitchen management is assuming high-volume dishes automatically equal high profits. But volume without margin is just busy work.

The 4-quadrant method

Sort all your dishes into these 4 categories:

  • Stars: Popular + profitable (food cost under 32%)
  • Plowhorses: Popular + unprofitable (food cost above 35%)
  • Puzzles: Unpopular + profitable
  • Dogs: Unpopular + unprofitable

⚠️ Watch out:

Plowhorses are your biggest threat. They generate impressive sales but minimal profit. Customers love ordering them, but you earn nothing on them.

How to identify your loss leaders

Create a list of your 10 best-selling dishes. Calculate for each one:

  • Weekly quantity sold
  • Weekly sales revenue (quantity × price excl. VAT)
  • Food cost percentage (ingredients / price excl. VAT × 100)
  • Profit per portion (price excl. VAT - ingredients - labor)

💡 Example calculation:

Steak (most popular dish):

  • Sold: 80 per week
  • Price: €32.00 incl. VAT = €29.36 excl. VAT
  • Ingredients: €12.50
  • Food cost: (€12.50 / €29.36) × 100 = 42.6%

This is a Plowhorse: popular but unprofitable.

What to do with loss leaders

You have 3 options for dishes with high sales but low profit:

  • Increase prices - Carefully, in small increments of €1-2
  • Reduce portion sizes - 20 grams less meat saves significantly
  • Source cheaper ingredients - Different supplier or quality grade
  • Modify the recipe - Fewer premium ingredients, more affordable fillers

💡 Impact calculation:

If you reduce the steak food cost from 42.6% to 32%:

  • Extra profit per portion: €3.11
  • 80 portions per week: €249 extra
  • Per year: €12,948 extra profit

Tools that help

Manual calculations consume enormous time. A food cost calculator like KitchenNmbrs automatically calculates each dish's food cost and reveals which ones are most profitable. You'll instantly spot which popular dishes are draining your profits.

How to find loss leaders? (step by step)

1

Make a top 10 of your best-selling dishes

Count how many of each dish you sell per week. Rank them from most to least sold. Focus on the top 10, they make 80% of your sales.

2

Calculate the exact ingredient costs per dish

Add up all ingredients: meat, fish, vegetables, sauces, garnish, oil, butter. Don't forget anything that goes on the plate. Use current purchase prices.

3

Calculate the food cost percentage per dish

Formula: (Ingredient costs / Selling price excl. VAT) × 100. Anything above 35% is suspicious. Above 40% and you're probably losing money.

4

Compare popularity against profitability

Popular dishes (top 5) with high food cost (above 35%) are your loss leaders. These drive sales but eat into your margin.

5

Calculate the annual impact

Multiply the loss per portion by the number sold per year. This shows you how much these loss leaders are really costing you.

✨ Pro tip

Analyze your 5 highest-volume dishes every 30 days for food cost creep. If those remain profitable, you've addressed 80% of potential margin issues.

Calculate this yourself?

In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.

Try KitchenNmbrs free →

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Frequently asked questions

What is an acceptable food cost percentage?

For most restaurants, a healthy food cost ranges between 28% and 35%. Above 35% makes profitability difficult. Below 25% might indicate overpricing.

Should I remove popular dishes with high food cost from the menu?

Not immediately. First attempt to lower costs by reducing portions, sourcing cheaper ingredients, or raising prices. Remove only as a final option.

How often should I check my food cost?

Analyze your top 5 dishes monthly. Suppliers frequently increase prices, so last month's profitable dish could become this month's loss leader.

Can a dish with 40% food cost still be profitable?

Only if your other expenses are minimal and you have sufficient volume. Typically 40%+ food cost means you're losing money on that dish.

ℹ️ This article was prepared based on official sources and professional expertise. While we strive for current and accurate information, the content may differ from the most recent regulations. Always consult the official authorities for binding standards.

📚 Sources consulted

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.

JS

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.

🏆 8 years kitchen manager at 1NUL8 Group Rotterdam
Expertise: food cost management HACCP kitchen management restaurant operations food safety compliance

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