Do you know if your restaurant investment is actually paying off? Most food service owners can tell you their monthly revenue, but they're clueless about their actual return on investment. Here's how to calculate ROI properly and spot the red flags early.
What is ROI and why does it matter?
Return on Investment (ROI) is the percentage profit you make on your total investment. It shows if you're better off putting your money into your restaurant, or just parking it in a savings account.
💡 Example:
You've invested €150,000 in your restaurant (furnishings, kitchen, startup capital). This year you make €30,000 net profit.
ROI: (€30,000 / €150,000) × 100 = 20%
The ROI formula for food service
The basic formula is simple, but you need to know exactly which numbers to plug in:
ROI % = (Net profit / Total investment) × 100
- Net profit: Your profit after all costs and taxes
- Total investment: Everything you've put in since day one
What counts toward total investment?
Most owners mess this up completely. Your total investment isn't just startup costs:
- Furnishing costs (kitchen, furniture, renovations)
- Startup capital (initial inventory, marketing, buffer)
- Extra investments during operations
- Money you've added as owner to cover losses
💡 Example total investment:
- Renovations and furnishings: €80,000
- Kitchen equipment: €45,000
- Startup capital first 6 months: €25,000
- Added in year 2 (losses): €15,000
- New oven year 3: €8,000
Total invested: €173,000
How do you calculate your net profit?
This isn't your revenue, but what actually stays in your pocket:
Net profit = Revenue - All costs - Taxes
- All costs: food, staff, rent, energy, depreciation
- Your own salary also counts as a cost
- Taxes: corporate tax or income tax
⚠️ Watch out:
Many entrepreneurs forget to count their own salary as a cost. If you'd earn €40,000 a year as a manager elsewhere, add this to your costs. Otherwise you're inflating your ROI.
What's a good ROI for food service?
Returns in food service vary wildly, but here are some guidelines - the kind of thing you only learn after closing your first month at a loss:
- 10-15%: Healthy for a stable business
- 15-25%: Good return, beats most other sectors
- 25%+: Excellent, but often not sustainable
- Below 5%: Too low, worse than savings
💡 Example calculation:
Restaurant with €400,000 annual revenue:
- Revenue: €400,000
- Food cost (30%): €120,000
- Staff including your own salary: €180,000
- Other costs: €70,000
- Taxes: €7,500
Net profit: €22,500
With €150,000 investment: ROI = 15%
Improving ROI in practice
If your ROI is too low, these are the most important levers:
- Optimize food cost: From 35% to 30% makes a huge difference
- Increase revenue per square meter: More covers or higher check average
- Control staff costs: More efficient scheduling
- Spread fixed costs: Over more revenue
Tracking ROI with food cost tools
To track your ROI you need current figures. Food cost management tools help by:
- Automatic food cost calculation per dish
- Overview of your actual costs
- Insight into which dishes contribute most to profit
- Historical data to spot trends
How do you calculate your ROI? (step by step)
Gather your total investment
Add up all the money you've ever put into your business: startup costs, renovations, equipment, added losses, and later investments. Don't forget anything, including that new register from last year.
Calculate your actual net profit
Subtract all costs from your annual revenue: food, staff (including your own salary), rent, energy, depreciation, and taxes. What's left is your net profit.
Apply the ROI formula
Divide your net profit by your total investment and multiply by 100. The result is your ROI percentage. Compare this to the 10-25% benchmark for food service.
✨ Pro tip
Calculate your ROI monthly for the first 18 months of operation, not just annually. Early-stage restaurants can swing from 5% to 25% ROI within a quarter as you dial in operations.
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 count my own salary as a cost?
Yes, absolutely. If you'd earn €40,000 as a manager elsewhere, add this to your costs. Otherwise you're inflating your ROI and getting a distorted picture of your actual return.
What if I made losses in some years?
Add the money you put in to cover losses to your total investment. Loss years are part of being an entrepreneur and the cash you inject to keep going definitely counts.
Is 8% ROI good for a restaurant?
That's on the low side. With 8% you're earning less than many other investments. Aim for at least 10-15% to make it worthwhile.
How often should I calculate my ROI?
At least once a year, at your year-end closing. But it's smarter to check quarterly so you can adjust course early if things aren't going well.
Does the value of my property count toward the investment?
Only if you bought the property specifically for your restaurant. If you already owned it or it increased in value for other reasons, only count the restaurant-specific investments.
What about equipment that breaks down unexpectedly?
Major equipment replacements count as new investments when calculating total money put in. But regular maintenance and small repairs go into operating costs, not investment totals.
📚 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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