Calculate your break-even in 4 steps

ERP Fundamentals2026-10-29

After financial ratio analysis you know whether your month improved, but one question remains that every owner asks before a decision: how much must I sell each month to avoid a loss? That is the break-even point: the sales that cover all costs with no profit and no loss. Calculate it from your monthly income statement in 4 steps: split costs into fixed and variable, calculate the contribution margin ratio, then break-even sales, then your margin of safety and how any new decision moves it.

Example: the caterer in September

We stay with the same caterer. Its approved September income statement: revenue SAR 208,000, total costs SAR 172,400, and net profit SAR 35,600. The question now: if sales drop, at what figure does that profit disappear?

Step 1: classify every cost as fixed or variable

A variable cost rises and falls with sales; a fixed cost is paid even if you sell nothing. Ask of each line: if we served no banquet this month, would we still pay it?

LineTypeSeptember (SAR)
Food ingredientsVariable78,000
Hourly banquet staff (part of kitchen wages)Variable8,000
Delivery fuelVariable5,300
Fixed kitchen salariesFixed24,000
Admin salariesFixed28,000
RentFixed15,000
Power, water, maintenance, depreciation, marketing and bank chargesFixed14,100

Totals: variable costs SAR 91,300, fixed costs SAR 81,100. Power moves a little with activity, but most of it is paid regardless, so we treated it as fixed. What matters is using the same classification every month so you can compare.

Step 2: calculate the contribution margin ratio

The contribution margin is what remains of each riyal of sales after variable costs; it covers the fixed costs and then becomes profit. Revenue 208,000 − variable 91,300 = SAR 116,700. The ratio: 116,700 ÷ 208,000 = 56.1%. Each riyal the kitchen sells leaves about 56 halalas to cover fixed costs.

Step 3: calculate break-even sales

Break-even sales = fixed costs ÷ contribution margin ratio = 81,100 ÷ 56.1% = about SAR 144,500 a month. Quick check: 144,500 × 56.1% gives a margin close to 81,100, leaving neither profit nor loss. Every riyal of sales above that figure leaves 56 halalas of profit, and any month below it loses money.

Step 4: calculate the margin of safety and test decisions

The margin of safety is the distance between actual sales and break-even: 208,000 − 144,500 = about SAR 63,500, or 30.5% of sales. Monthly sales could fall by nearly a third before losses begin. Then use the same calculation before any decision: each new fixed cost needs extra sales equal to that cost divided by the margin ratio.

Running it from WhatsApp

Owner (4 October): I want to hire a second cook at 9,000 a month. How much more do we need to sell so it does not eat the profit?

System: September's contribution margin ratio is 56.1%. A salary of 9,000 needs about SAR 16,000 of extra monthly sales to cover itself, raising break-even from about 144,500 to about SAR 160,500.

Owner: And what were our sales for the last 3 months?

System: July 184,000, August 196,000, September 208,000. All are above the new break-even, and the lowest leaves a margin of safety of about 13%.

Owner: Fine, let's hire him

The owner needed no spreadsheet, just one question and figures from approved statements. More on running your business from WhatsApp.

Checklist before you rely on the break-even point

  • Did you take the figures from an approved income statement after month-end close?
  • Did you classify every line and separate fixed wages from variable banquet staff?
  • Did you exclude owner's drawings and loan principal from costs?
  • Did you keep the same classification every month so break-even is comparable?
  • Did you recalculate after any change in prices, rent or salaries?
Summary: The break-even point answers one question: how much must I sell to avoid a loss? Split costs into fixed and variable, calculate the contribution margin ratio, then divide fixed costs by it. Watch your margin of safety every month, and before any new fixed cost, calculate how much extra sales you need to cover it.