Most chefs dream about their next signature dish while their current menu bleeds money. But what if you spent that creative hour crunching numbers instead? You'd discover the difference between a restaurant that survives and one that thrives.
What one hour on numbers gets you
While you're perfecting that new appetizer, your profit's draining through existing dishes. One hour with a calculator exposes these leaks:
- You discover which dishes don't generate enough revenue
- You see where portions are too large
- You find ingredients that have become too expensive
- You check if your prices still make sense
💡 Example:
Restaurant De Haven analyzes their 5 most popular dishes:
- Ribeye: food cost 42% (bleeding money)
- Salmon fillet: food cost 31% (decent)
- Pasta carbonara: food cost 28% (solid)
- Lamb rack: food cost 38% (too expensive)
- Caesar salad: food cost 23% (money maker)
Result: 2 out of 5 dishes are losing money
The real cost of developing new dishes
Creating new dishes drains time and money with zero guarantee of success:
- Development time: 3-5 hours testing and perfecting
- Ingredients: €50-100 on trial batches
- Training: 2 hours to teach the kitchen
- Menus: €200-500 for reprinting
- Risk: 70% of new dishes flop within 3 months
⚠️ Reality check:
A new dish that doesn't sell costs you money once. An existing dish with terrible margins costs you money every single day.
What numbers deliver immediately
Number-crunching gives instant results. Here's what one focused hour delivers:
Food cost optimization
Analyze your 10 best-selling dishes. Drop your food cost from 35% to 30%, and you'll earn significantly more:
💡 Real calculation:
Annual revenue: €400,000
Food cost improvement: 5 percentage points (from 35% to 30%)
Extra profit: €400,000 × 0.05 = €20,000 per year
Portion size control
Oversized portions are money down the drain. Check if your kitchen follows recipes:
- Weigh 5 portions of your most popular dish
- Compare with your recipe
- Calculate the cost difference
💡 Example impact:
Steak recipe: 200 grams, reality: 250 grams
Difference: 50 grams × €32/kg = €1.60 per portion
Sales: 30 portions/week
Loss: €1.60 × 30 × 52 = €2,496 per year
The mindset shift that changes everything
Profitable restaurant owners allocate their time differently:
Creative vs. analytical
- Creativity: Fun, but unpredictable return
- Analysis: Less glamorous, but direct results
- Balance: 80% focus on optimizing existing menu
- Innovation: 20% time for new concepts
From gut feeling to hard facts
Too many restaurant owners rely on intuition instead of data. That's the kind of thing you only learn after closing your first month at a loss.
⚠️ Reality check:
"This dish is popular" doesn't mean "this dish is profitable". Popularity and profitability are completely different metrics.
How to spend that golden hour
Here's your roadmap for maximum impact:
Week 1: Food cost audit (60 minutes)
- Grab your 5 best-selling dishes
- Add up all ingredient costs
- Calculate food cost percentage
- Flag dishes above 35%
Week 2: Portion control check (60 minutes)
- Weigh actual portions
- Compare with recipes
- Calculate cost difference
- Train kitchen on correct portions
Week 3: Price optimization (60 minutes)
- Check when you last raised prices
- Compare with local competition
- Calculate new prices for poor performers
- Plan price adjustment
Long-term impact comparison
This approach delivers consistent results month after month, unlike hit-or-miss new dishes:
💡 One year comparison:
New dishes approach:
- 12 new dishes developed
- 3 of them are successful
- Costs: €6,000 in development
- Revenue: unpredictable
Numbers approach:
- Food cost improved by 3%
- Portions standardized
- Prices adjusted 2 times
- Extra profit: €15,000-25,000
A food cost calculator cuts these analyses from an hour to 15 minutes, giving you more time for what you love: cooking.
How do you do a numbers check? (step by step)
Select your top 5 dishes
Grab your POS system or note from memory which 5 dishes sell the most. These are your highest-impact dishes where optimization yields the most.
Calculate the actual ingredient costs
Add up all costs: main ingredient, garnish, sauce, oil, butter, everything that goes on the plate. Don't forget anything, not even the parsley as decoration.
Calculate food cost percentage
Divide ingredient costs by selling price excl. VAT and multiply by 100. Above 35%? Then you're losing money on this dish.
Prioritize the biggest problems
Start with the dish that sells most frequently AND has the highest food cost. That's where you'll get the biggest profit from optimization.
Create an action plan
Decide per dish: raise price, reduce portion, find cheaper ingredient, or remove from menu. Roll out one change per week.
✨ Pro tip
Spend 45 minutes this afternoon calculating food costs for your weekend specials instead of brainstorming new dishes. You'll likely find €500+ in monthly savings hiding in plain sight.
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 much time does a numbers analysis actually take?
For 5 dishes you'll spend about 1 hour doing everything manually. With digital tools it takes 15 minutes because calculations happen automatically.
What if guests notice I'm making portions smaller?
Do it gradually: 10-15% smaller goes unnoticed. You can compensate with an extra vegetable or better presentation. Most guests won't spot the difference.
Can't I just raise all prices instead of analyzing numbers?
Blind price increases are risky since you don't know which dishes can handle it. Better to analyze per dish and only raise where needed.
How often should I check my food cost?
At least once per month for your top sellers. Suppliers raise prices regularly and you need to factor that into your menu to stay profitable.
What if I discover all dishes have terrible margins?
Then you've got a structural problem. Start with your 3 best-selling dishes: raise the price by €2-3 and see how guests react. Usually it's fine.
Is food cost the only number that matters?
No, but it's the most critical for direct profit. Also monitor revenue per square meter, average check size, and labor costs as a percentage of revenue.
Should I remove dishes with high food costs completely?
Not necessarily if they're popular and drive traffic. Sometimes you can redesign the dish with cheaper ingredients or use it as a loss leader to sell profitable sides and drinks.
📚 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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