Break-even point: how much your restaurant needs to sell
The break-even point is the minimum sales you need to avoid losing money. It is not a growth goal: it is the floor you need to know before making any decision.
In this article
The break-even point is the sales figure that covers all your costs without a profit or a loss. It is a floor, not a ceiling. If you do not know it, every decision about price, shift, or investment becomes a gamble.
The good news is that it takes three figures to calculate: fixed costs, variable cost, and sales. The bad news is that many calculations mix line items and end up with a number that is useless for making decisions.
The formula
Break-even point = fixed costs ÷ contribution margin
The contribution margin is the percentage of each sale that remains after variable costs:
Contribution margin = 1 − (variable costs ÷ sales)
If your variable costs are 32% of sales, your margin is 68%. If your fixed costs are $9,000 a month:
9,000 ÷ 0.68 = $13,235
You need to sell at least $13,235 a month to cover your costs. Below that figure, you lose money; above it, you start generating margin.
What is fixed and what is variable
| Cost | Usually | How to treat it |
|---|---|---|
| Food and beverage | Variable | Rises with every sale |
| Packaging and commissions | Variable | Rises with delivery |
| Rent | Fixed | Paid even if you sell nothing |
| Utilities | Mixed | Split the fixed and the variable part |
| Payroll | Mixed | Split fixed staff and variable hours |
| Insurance and administration | Fixed | Does not change from week to week |
The classification is not perfect, but it has to be consistent. If you treat payroll as fixed one month and as variable the next, the break-even point moves even though the operation has not changed.
Example with covers
With an average ticket of $25 and 30 operating days:
13,235 ÷ 25 ÷ 30 = 17.6 covers a day
That number is more actionable than the monthly total. If your dining room has 40 seats and you run two shifts, 18 covers a day is a low floor; if you have 12 tables and one person in the kitchen, it can be a challenge.
The safety cushion
The cushion compares your current sales with the break-even point:
Cushion = (sales − break-even point) ÷ sales × 100
If you sell $30,000 and your break-even point is $13,235, the cushion is 55.9%. That means your sales can fall by more than half before you start losing money. If you sell $15,000, the cushion is 11.8%: one slow month leaves you on the edge.
There is no universal cushion. A seasonal restaurant needs a bigger one; one with recurring revenue can tolerate less. What matters is knowing how much room you have to absorb a drop.
How to use it to make decisions
Before signing a lease
If rent goes up by $2,000, the break-even point goes up. Can you sell that extra? Or does the space force you into a model that cannot hold?
Before hiring
A new person adds fixed cost. How many additional covers or sales do they need to generate to pay for themselves? If you cannot answer that, it is not a decision, it is a hope.
Before opening a second location
The second location has its own break-even point. Do not cover it with the first location's cash without calculating how long it takes to stand on its own.
Before a discount
A discount reduces the contribution margin and raises the break-even point. If you cut prices by 10%, you need more volume to cover the same costs. Run the numbers before you launch the promotion.
Common mistakes
1. Counting food as a fixed cost
Food is variable. If you treat it as fixed, the break-even point comes out wrong, and so do your pricing decisions.
2. Using sales that include tax
Work with net sales. If tax is included, separate it out so you do not inflate the margin.
3. Forgetting working capital
The break-even point tells you when you cover costs, not when you recover your investment. For that you need cash flow and months of cash.
4. Checking it only once
The break-even point changes with prices, rent, payroll, and sales mix. Review it at least every quarter, or whenever a major line item changes.
A review routine
- Monthly: update fixed and variable costs.
- Quarterly: review the break-even point against the P&L.
- Before a big decision: calculate the new break-even point and the cushion.
Calculate your break-even point
The break-even calculator gives you minimum sales, covers per day, and cushion. If you want to see the food and labor detail, use the prime cost breakdown.
Frequently asked questions
Does the break-even point include the initial investment?
No. It covers operating costs. You recover the investment through profit and cash flow, not through the break-even point.
What if my contribution margin is negative?
Every sale loses money before it covers fixed costs. The problem is in your price or in your variable cost; it is not fixed by selling more.
Should I use actual operating days?
Yes. A restaurant that opens 26 days a month does not have the same daily break-even point as one that opens 30. Use the actual days so the number stays actionable.
How often does it change?
Every time a supplier price, a delivery fee, the rent, or your staff changes. At a minimum, review it every quarter.
