Poor-selling dishes drain your profits faster than you realize. They hog cooler space, waste prep time, and create unnecessary food costs. Weekly sales tracking reveals which menu items need immediate replacement.
Track your sales figures per dish
Start simple: count every portion sold per dish. Most restaurant owners rely on hunches, but instincts mislead you. Hard data tells the real story.
? Example:
Restaurant with 12 main courses, 100 covers per week:
- Steak: 25 portions (25%)
- Salmon: 20 portions (20%)
- Pasta: 18 portions (18%)
- Lamb: 3 portions (3%)
The lamb sells poorly and ties up capital.
Collect data for 4 weeks minimum to spot real patterns. One slow week happens to anyone - four weeks reveals a genuine problem.
The 80/20 rule for menus
Your top 20% of dishes typically generate 80% of sales. The other 80% of menu items barely contribute but still demand full attention and resources.
- Top sellers: Dishes that make up more than 15% of your sales
- Average: Dishes between 5% and 15%
- Flops: Dishes under 5% of your sales
⚠️ Watch out:
A dish that makes up only 2% of your sales requires just as much attention as a top seller. That's inefficient.
Weekly analysis routine
Every Monday, spend 15 minutes reviewing last week's numbers:
- Count the sales per dish from last week
- Calculate the percentage of your total sales
- Compare with the previous week
- Mark dishes under 5% as 'at risk'
Three consecutive weeks below 5%? Time for action. Based on real restaurant P&L data, this pattern rarely reverses without menu changes.
Cost of poor sellers
Underperforming dishes cost more than their ingredient price suggests:
? Example costs:
Lamb that sells 3 times per week:
- Inventory in cooler: €120
- Risk of spoilage: €30/week
- Chef time for preparation: 2 hours/week
- Menu space: costs other dishes sales
Replacing it with a more popular dish can save €200+ per month.
Decision criteria for replacement
Replace a dish if it meets 2 or more criteria:
- Sales: Under 5% of total sales, 3 weeks in a row
- Margin: Food cost above 35% due to expensive ingredients
- Complexity: Lots of prep time for little sales
- Shelf life: Ingredients that spoil quickly
- Season: Dish no longer fits the season
⚠️ Watch out:
Never replace more than 2 dishes at once. Guests need time to adjust to changes.
What you replace it with
Analyze gaps in your current menu structure:
- Price range: Are you missing a dish in the €18-22 range?
- Dietary patterns: Enough vegetarian/vegan options?
- Cooking method: Too many fried dishes, not enough grilled?
- Season: What fits the current season?
Test new dishes as weekend specials first. This validates demand before permanent menu placement.
Related articles
How do you analyze your menu sales? (step by step)
Gather sales figures per dish
Count how much you sold of each main course in the past week. Use your POS system or count manually with tally marks.
Calculate the percentage per dish
Divide the sales per dish by your total number of main courses and multiply by 100. For example: 8 portions out of 80 total = 10%.
Mark dishes under 5%
Dishes that make up less than 5% of your sales are candidates for replacement. Track this for 3-4 weeks to see a pattern.
Analyze the costs of poor sellers
Calculate what poorly selling dishes cost you: inventory, waste, prep time, and missed opportunities for more popular dishes.
Plan the replacement
Choose a replacement dish that fits your concept, season, and price range. Test it first as a daily special before you permanently add it to the menu.
✨ Pro tip
Run a 14-day sales comparison every Monday morning to catch declining dishes before they become major profit drains. Mark any dish dropping below 6% for immediate monitoring.
Calculate this yourself?
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Frequently asked questions
How long should I wait before replacing a dish?
What if a dish sells poorly but has high margin?
How many dishes can I replace at once?
Should I consider seasons when replacing dishes?
What's the minimum sales percentage before I worry about a dish?
How do I handle chef resistance to removing their signature dish?
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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