Most restaurant owners think they're profitable until they actually calculate their gross profit margin. This single metric reveals whether you have enough cushion to cover staff, rent, and utilities after paying for ingredients. Without tracking it monthly, you're flying blind through one of the restaurant industry's most critical financial indicators.
What is gross profit margin?
Gross profit margin (also called gross margin) is the percentage of your revenue that remains after subtracting food costs. It reveals how much breathing room you have for covering other expenses like staff wages, rent and utilities.
? Example:
Restaurant with €50,000 revenue per month:
- Revenue: €50,000
- Food costs: €15,000
- Gross profit: €35,000
Gross profit margin: (€35,000 / €50,000) × 100 = 70%
The formula for gross profit margin
The math is straightforward:
Gross profit margin = ((Revenue - Food costs) / Revenue) × 100
You can also express it as:
Gross profit margin = (Gross profit / Revenue) × 100
⚠️ Note:
Always calculate with revenue excluding VAT. VAT belongs to the tax authority, not your business.
What are healthy gross profit margins?
Gross profit margins differ across hospitality segments. Here's what you should aim for:
- Fine dining restaurants: 65-72%
- Casual dining: 65-72%
- Bistros and brasseries: 68-75%
- Pizzerias: 70-78%
- Cafés with kitchen: 65-75%
- Fast casual: 70-75%
? Comparison example:
Two restaurants with identical revenue of €40,000:
- Restaurant A: 65% gross margin = €26,000 gross profit
- Restaurant B: 72% gross margin = €28,800 gross profit
Monthly difference: €2,800 - that's €33,600 annually!
Why is gross profit margin so important?
Your gross profit margin determines your restaurant's survival. From tracking this across dozens of restaurants, I've seen that your gross profit must cover:
- Staff costs (typically 25-35% of revenue)
- Rent (typically 6-10% of revenue)
- Energy and utilities (typically 3-5% of revenue)
- Marketing and administration
- Depreciation and maintenance
If your gross margin falls short, you'll have nothing left for yourself.
⚠️ Note:
A gross profit margin below 60% leaves most restaurants unable to turn a profit.
How do you improve your gross profit margin?
You have two paths to boost your gross margin:
1. Increase your selling prices
- Verify your prices align with current costs
- Research competitors in your neighborhood
- Implement gradual increases (typically 5-8% annually)
2. Reduce your food costs
- Negotiate better rates with suppliers
- Cut waste through improved planning
- Audit your portion sizes
- Source seasonal ingredients
? Practical example:
Trimming portion sizes by 10%:
- Food costs fall from €15,000 to €13,500
- Gross profit margin jumps from 70% to 73%
- Additional gross profit: €1,500 monthly
Annual bonus: €18,000!
Gross profit margin vs. net profit margin
Don't mix these up: gross profit margin differs from net profit. Gross profit shows what remains after food costs. Net profit reveals what's left after every expense.
A restaurant might maintain a solid 70% gross margin yet still lose money because of excessive staff or rent costs.
Food cost calculators help you monitor gross profit margins per dish and across your entire operation, allowing quick adjustments if numbers start sliding.
How do you calculate gross profit margin? (step by step)
Gather your revenue figures
Get your revenue from a specific period (for example a month). Always calculate excluding VAT. If your cash register calculates including VAT, divide by 1.09 at 9% VAT rate.
Add up all your food costs
Calculate all costs of food, beverages and other sold products together. Don't forget the small things like oil, spices and garnishes - they count too.
Calculate your gross profit margin
Subtract your food costs from your revenue. Divide this by your revenue and multiply by 100. Formula: ((Revenue - Food costs) / Revenue) × 100 = gross profit margin.
✨ Pro tip
Track gross margins separately for weekend versus weekday service - most restaurants see 4-7% higher margins on weekends due to higher-priced specials and increased wine sales.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
Calculate it yourself?
Our free food cost calculator does it in seconds.
Was this article helpful?
Frequently asked questions
What is a healthy gross profit margin for my restaurant?
Should I include VAT in my gross profit calculation?
What if my gross profit margin is too low?
How often should I check my gross profit margin?
Is gross profit margin the same as food cost percentage?
Which costs belong in food costs?
Can seasonal menu changes affect my gross profit margin?
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
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.
More in this category
Related questions
Explore more topics
Calculate it yourself with KitchenNmbrs
All the formulas you learn here — KitchenNmbrs calculates them automatically. Enter your ingredients and instantly see your food cost, margin, and selling price. Try it free for 14 days.
Start free trial →