Most restaurant owners think raising prices automatically boosts profit. But that's not always true. Here's how to calculate the real impact before you make a costly mistake.
Why this calculation matters
Your meat supplier hikes prices 15%. You're considering raising drink prices. But what does this actually mean for your bottom line? Without proper math, you're gambling with your profits.
💡 Example:
Restaurant with €500,000 annual revenue raises all meat dishes by €2:
- Meat dishes: 40% of revenue = €200,000
- Average check for meat dishes: €25
- Number of meat dishes per year: 8,000
- Extra revenue: 8,000 × €2 = €16,000
Impact on total profit: +€16,000 per year
The formula that saves you money
Here's the basic formula, but determining each variable correctly is crucial:
Impact = (Number of units sold × Price increase) - Loss from reduced sales
The challenging part? Estimating how many customers you'll lose. Not everyone accepts higher prices, and this mistake costs the average restaurant EUR 200-400 per month.
Step 1: Gather your current sales data
You'll need these numbers:
- Total revenue of the product category per month
- Average price per product in that category
- Number of units sold per month
💡 Example pizzeria:
Pizzas in March:
- Total pizza revenue: €18,000
- Average price per pizza: €12
- Number of pizzas: 1,500 units
Step 2: Calculate direct revenue impact
Figure out what the price increase delivers if sales stay constant:
Extra revenue = Number of units × Price increase
💡 Example pizzeria (continued):
Price increase of €1 per pizza:
- 1,500 pizzas × €1 = €1,500 extra per month
- Per year: €1,500 × 12 = €18,000 extra revenue
Step 3: Factor in price sensitivity
Higher prices typically mean fewer sales. How sensitive are your customers to price changes?
- Low price sensitivity: 5-10% sales drop
- Average price sensitivity: 10-20% sales drop
- High price sensitivity: 20-30% sales drop
⚠️ Note:
Pizzas are typically price-sensitive since customers can easily switch to competitors. Calculate with 15-20% loss for a €1 increase.
Step 4: Calculate the real impact
Now you'll determine the actual effect on your revenue:
💡 Example pizzeria (final calculation):
Assumption: 15% fewer sales due to €1 increase
- New sales: 1,500 × 0.85 = 1,275 pizzas
- New price: €13 per pizza
- New revenue: 1,275 × €13 = €16,575
- Old revenue: €18,000
- Difference: €16,575 - €18,000 = -€1,425
Result: €1,425 less revenue per month
This example shows the price increase backfires. The higher margin per pizza can't compensate for the volume loss.
Scenarios where price increases work
Price increases become profitable if:
- Your customers aren't price-sensitive (loyal base, unique concept)
- Competitors are also raising prices
- The increase is modest (€0.50 instead of €1.00)
- Your food costs have risen and margins are squeezed
Test with small increments
Don't adjust all prices simultaneously. Start by testing:
- One product category
- Small increase (5-10%)
- Measure results after 4 weeks
- Adjust based on data
Tools like KitchenNmbrs let you track how price changes affect your food costs and profitability per dish in real-time.
How do you calculate the impact of a price increase? (step by step)
Gather your sales figures per product category
Note the total revenue, average price, and number of units sold for the product category you want to increase. You need these figures for the calculation.
Calculate the direct impact without loss
Multiply the number of units by the price increase. This gives you the maximum extra amount if you continue selling the same volume.
Estimate the loss from price sensitivity
Determine what percentage less you'll likely sell. Calculate with 10-20% for most products, more for highly price-sensitive items like pizzas.
Calculate the new revenue and compare
Calculate: new sales × new price = new revenue. Compare this with your current revenue to see the actual effect.
✨ Pro tip
Test your price increase on appetizers or sides first - track customer response for 6 weeks before touching main courses. These items have higher margins and lower price sensitivity.
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 do I determine if my customers are price-sensitive?
Test with a small increase on one product and measure after 4 weeks whether sales dropped. Loyal customers and unique concepts typically show less price sensitivity than fast food or pizza places.
Should I raise all prices simultaneously?
No, start with one product category and measure the impact. This approach lets you learn customer reactions without risking your entire menu.
What if my competitor maintains lower prices?
Price increases become challenging unless you clearly offer superior value. Consider reducing costs first or strengthening your concept before raising prices.
How frequently can I raise prices?
Maximum 1-2 times per year, unless costs spike dramatically. Frequent price increases irritate customers and drive them to competitors.
What should I do if the calculation shows negative results?
Don't raise prices. Focus on cost reduction, better purchasing, or more efficient preparation methods before considering price increases.
Does the time of year affect price increase success?
Yes, avoid raising prices during slow seasons or right before major holidays. January and September typically work better since customers expect some annual adjustments.
How do I calculate the break-even point for price increases?
Divide your desired revenue increase by the new price difference, then compare to your expected sales volume. If expected sales exceed this number, the increase works.
📚 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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