Quick answer
A restaurant's real net margin is what's left in your pocket after paying everything: ingredients, labor (including your own salary), rent, utilities, depreciation, accountant and taxes. In practice it almost always sits between 3% and 10% of revenue, with most venues between 4% and 6%. The hard part isn't the arithmetic, it's not cheating on it: nearly everyone forgets costs that quietly eat two or three points of margin.
What "net margin" actually means
In industry slang, "margin" is a slippery word. Some mean the markup on a dish, some the contribution margin, some the bottom line. Let's sort it out, because reasoning about the wrong margin leads to the wrong decisions.
- Dish margin (food cost): selling price minus ingredient cost. A pizza sold at 8 with 2 of ingredients has a gross margin of 6 (75%). Nice, but it doesn't pay the rent.
- Contribution margin: what's left after variable costs (ingredients, part of labor) to cover fixed costs. It's the basis for break-even.
- Net margin (net profit): the bottom line of the P&L. That's what we're talking about here. It's the only figure that tells you whether the business actually makes economic sense.
Net margin is expressed as a percentage of revenue:
Net margin % = (Revenue − Total costs) / Revenue × 100
It looks trivial. The whole game is what you put inside "Total costs."
The step-by-step calculation
Start from revenue and strip costs in the order they bite. Here's a management P&L structure, per 100 of intake.
| Line | Per 100 | Notes | |---|---|---| | Revenue | 100.00 | Net of VAT/sales tax | | − Food & beverage cost | −30.00 | Raw materials | | − Labor | −33.00 | Owner included | | = Prime cost | 63.00 | Critical threshold: max 65% | | − Rent | −9.00 | Plus common charges | | − Utilities | −5.00 | Power, gas, water | | − Marketing | −3.00 | Social, delivery, materials | | − Depreciation/maintenance | −4.00 | Kitchen, fixtures, repairs | | − Accountant, insurance, misc. | −4.00 | Admin costs | | = Pre-tax profit | 12.00 | | | − Taxes | −5.00 | Corporate/local taxes | | = Net margin | 7.00 | 7% of revenue |
In this example you close at 7% net: a solid result. But let prime cost rise just three points (food at 32%, labor at 34%) and you drop to 4%. Net margin lives or dies on prime cost.
The hidden costs that eat your margin
This is where the margin you think you have diverges from the real one. The lines almost everyone forgets:
- The owner's salary. If you work 60 hours a week and don't pay yourself, the margin is fake. Value your work at market rate (around 2,500–3,500 gross/month for an operating owner) and put it in labor.
- Food waste. 4–7% of revenue goes in the bin: bad portioning, expired stock, kitchen mistakes. It shows up on no invoice, but it's real food cost.
- Delivery commissions. Glovo, Deliveroo and the like keep 25–35% of the order. A dish sold via delivery has a completely different margin than one served at the table.
- Card payment fees. 0.8–1.5% on every POS transaction. On 400,000 of card intake that's 3,200–6,000 a year.
- Depreciation. Spent 80,000 on the kitchen? Spread it over 5–7 years. Ignoring it means discovering the hole when the equipment needs replacing.
Net margin and cash are not the same thing
Common mistake: looking at the bank balance and calling it profit. It isn't. Net margin is an accounting figure; cash moves on a different timeline.
Example: in January you take 40,000, you have an accounting profit of 2,800 (7%), but the bank seems to hold 6,000 more. Why? You accrued severance (not yet paid), depreciation is a non-cash cost, and you sold inventory bought in December. Cash is "fat" today and will deflate in June when tax balances come due. That's why you need two separate tools: the P&L for margin, the cash budget for liquidity.
Benchmark numbers by venue type
A "good" margin depends on the model. A table of realistic benchmarks:
| Venue type | Food cost | Labor | Typical net margin | |---|---|---|---| | Pizzeria | 25–30% | 28–33% | 7–12% | | Trattoria / bistro | 28–32% | 28–34% | 6–10% | | Bar with kitchen | 22–28% | 30–35% | 6–9% | | Mid-range restaurant | 30–34% | 32–36% | 4–8% | | Fine dining | 30–38% | 36–42% | 3–6% |
Note the paradox: fine dining has the highest average check but the lowest percentage margin, because skilled labor (brigade, sommelier, maître) erodes the advantage. In absolute terms, though, 4% on 1.2 million is still 48,000.
How to project margin before you decide
Margin isn't only read after the fact: it's designed up front. Before adding a dish to the menu or changing prices, simulate the effect on overall margin. The menu margin projection calculator lets you line up dishes with their forecast sales and see the weighted average margin — not the theoretical margin of a single plate.
To start from the building block, calculate the single dish margin with the dish margin calculator: enter ingredient cost and selling price and you get food cost % and margin in currency. It's the starting point for understanding which dishes carry the bill and which drag it down.
A numeric projection example: you have 10 dishes, theoretical average food cost 30%. But the 45% food cost dish (truffle) sells three times more than the others. The real weighted food cost climbs to 34%, not 30%. Four points that, on 80,000 monthly revenue, are 3,200 of lost margin. Without weighted projection, you'd never have seen it.
Common mistakes
- Confusing markup and margin. A 300% markup is not a 300% margin. They're different views: markup starts from cost, margin from price.
- Not paying yourself a salary. The classic operating-owner error. The margin looks great until you value your hours.
- Ignoring low-margin delivery. Pushing delivery to "do volume" while every order earns half of a dine-in cover.
- Looking only at average food cost. The average hides toxic dishes. What matters is food cost weighted by real sales.
- Mistaking cash for profit. The money in the bank in January is partly taxes and severance not yet paid.
- Not updating prices. Raw materials rise, the menu stays frozen for two years: margin erodes in silence.
Related resources
- Menu margin projection calculator — simulate the weighted average margin of the whole menu.
- Dish margin calculator — calculate food cost % and margin of a single dish.