Most restaurateurs think price rounding is just about clean numbers, but that mindset costs them thousands annually. You might round €24.73 down to €24.50 for simplicity or up to €25.00 for psychology. Here's how to calculate which choice actually impacts your bottom line.
Why price rounding matters
Every cent you charge more or less gets multiplied by portions sold. Popular dishes can generate hundreds or thousands of euros difference per year from seemingly minor adjustments.
💡 Example:
You sell 50 pastas weekly at €18.50. Considering rounding down to €18.00 or up to €19.00.
- Current price: €18.50 × 50 × 52 weeks = €48,100
- Round down: €18.00 × 50 × 52 = €46,800
- Round up: €19.00 × 50 × 52 = €49,400
Difference: €2,600 annually between lowest and highest option!
The formula for annual impact
The calculation is straightforward but reveals surprising results:
Annual impact = (New price - Old price) × Portions per week × 52 weeks
Apply this formula to each dish, then add them up for your total revenue impact.
⚠️ Note:
Always use realistic numbers. Pull exact sales figures per dish from your POS system over the past few months.
Impact varies by dish popularity
Not every dish carries equal weight. Your bestsellers drive the biggest impact on final results:
💡 Example comparison:
Both dishes increased by €0.50:
- Popular burger: 80 weekly → €0.50 × 80 × 52 = €2,080 extra
- Seasonal special: 8 weekly → €0.50 × 8 × 52 = €208 extra
The burger generates 10× more additional revenue than the special.
Factoring in price elasticity
Higher prices can reduce sales volume - that's price elasticity. But for most restaurant dishes, this effect stays minimal with small adjustments (€0.25 - €0.50).
- Price increase up to €1: typically no noticeable sales impact
- Price increase €1-2: possibly 5-10% fewer sales
- Price increase >€2: can trigger significant decline
Test this by adjusting prices gradually and tracking sales data. After managing kitchen operations for nearly a decade, I've seen that most guests accept reasonable increases without changing their ordering habits.
Strategic reasons to round down
Sometimes a lower price makes strategic sense:
- Competition offers much lower prices in your area
- You want to drive volume (more guests, higher revenue from drinks/sides)
- Psychological pricing: €19.95 feels significantly cheaper than €20.50
💡 Example strategic pricing:
Your lunch special costs €8.20 in ingredients. Could charge €12.50 but choose €11.95.
- Food cost at €12.50: 65.6% (too high!)
- Food cost at €11.95: 68.6% (even higher, but...)
- Goal: attract more lunch guests who also order drinks (higher margin)
The lower price drives volume, beverage sales compensate for reduced margin.
How rounding affects total profit margin
Price rounding impacts revenue and profit margin. Small price differences create disproportionately large profit changes.
Say your food cost runs 30% and other costs hit 60%. That leaves 10% profit. Raise your price by €0.50:
- That entire €0.50 flows to profit (ingredient costs stay constant)
- Your profit margin jumps from 10% to 12.5%
- Relatively speaking, profit has increased by 25%!
This demonstrates why small price adjustments pack such power for your results.
How do you calculate the annual impact of price rounding?
Gather your sales figures per dish
Check your POS system for the number of portions sold per dish per week from the past 3 months. Use the average as your starting point for the calculation.
Calculate the price difference per dish
Subtract your current price from your new price. When rounding down you get a negative number, when rounding up a positive number.
Multiply by portions and weeks
Use the formula: (New price - Old price) × Portions per week × 52 weeks. This gives you the annual impact in euros per dish.
Add up all dishes
Sum the annual impact of all your dishes for the total effect on your annual revenue. Focus especially on your 5 best-selling dishes - they have the biggest impact.
Check if the price increase is realistic
Compare your new prices with the competition and your target audience. A price increase only makes sense if guests are willing to pay it.
✨ Pro tip
Track your top 3 bestsellers over the next 30 days - a €0.30 increase on dishes selling 75+ portions weekly can generate over €1,100 annually per item. Small changes on high-volume items create the biggest impact.
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 adjust all dishes simultaneously?
No, start with your 3-5 bestsellers first. They drive the biggest revenue impact. Test the market response before adjusting other menu items.
How do I know if customers accept higher prices?
Track sales figures 2-4 weeks after price changes. If sales drop more than 15%, the increase was likely too aggressive. Monitor both volume and customer feedback.
Can I change prices mid-year?
Yes, but avoid frequent changes. Customers notice monthly price fluctuations and it damages trust. Standard practice is 1-2 adjustments annually.
Do I include VAT in these calculations?
Menu prices include 9% VAT, so use those figures for revenue calculations. For profit analysis, work with VAT-excluded amounts to get accurate margins.
What if competitors charge significantly less?
Verify you're comparing equivalent products. Quality differences, portion sizes, or atmosphere often justify higher prices. Focus on your costs and value proposition, not just competitor pricing.
Should I recalculate after supplier price increases?
Absolutely. Run these calculations whenever ingredient costs rise significantly. A 10% supplier increase might require only a 3% menu price adjustment to maintain margins.
📚 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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