Break-Even Analysis: Find Your Profit Threshold

How break-even analysis works in practice

Break-even analysis finds the sales volume or revenue needed to cover all fixed and variable costs. Below break-even you lose money; above it you earn profit. Contribution margin (price minus variable cost) funds fixed costs.

The goal is not to memorize every term — it is to know which inputs matter and what outcome you are aiming for.

So what: When you can explain this in your own words, you are far less likely to accept a bad quote, fee, or assumption.

A real scenario worth running

Online course: $8,000/month fixed costs, $199 price, $29 variable cost per student (platform + support). Step by step: Contribution margin = $199 − $29 = $170 per student → Break-even units = $8,000 / $170 ≈ 48 students/month → Break-even revenue = 48 × $199 ≈ $9,552/month. Bottom line: Need 48 enrollments monthly to cover costs. Each student beyond 48 contributes $170 to profit.

So what: Plug your own numbers into the same logic before you decide.

Fixed vs variable costs

Some costs are semi-variable — step up at certain volumes (hiring a second shift). Split them conservatively for planning.

So what: Run your own inputs before you commit — small changes in assumptions can shift the outcome sharply.

Worked example: online course

$8,000/month fixed costs, $199 price, $29 variable cost per student

Student 49 contributes $170 profit; student 30 loses the business money overall.

So what: Run your own inputs before you commit — small changes in assumptions can shift the outcome sharply.

Break-even in dollars

When you think in revenue targets:

Break-even revenue = Fixed costs / Contribution margin ratio

CM ratio = (Price − Variable cost) / Price

For the course: CM ratio = $170/$199 = 85.4% → $8,000 / 0.854 ≈ $9,367/month.

So what: Run your own inputs before you commit — small changes in assumptions can shift the outcome sharply.

Sensitivity: what moves break-even?

Run scenarios before signing leases or hiring.

So what: Run your own inputs before you commit — small changes in assumptions can shift the outcome sharply.

Multi-product break-even

Selling courses and coaching? Use weighted averages:

Weighted price = Σ(price × sales mix %)
Weighted variable cost = Σ(var cost × sales mix %)

Or calculate break-even per product line if costs are separable.

So what: Run your own inputs before you commit — small changes in assumptions can shift the outcome sharply.

Break-even vs ROI

Launch a new product? Break-even first. Evaluate equipment purchase? Add ROI.

So what: Run your own inputs before you commit — small changes in assumptions can shift the outcome sharply.

Café example

$18,000/month fixed, $4.50 avg drink, $1.20 variable cost

At 200 drinks/day you're profitable; at 150 you're bleeding ~$165/day.

So what: Run your own inputs before you commit — small changes in assumptions can shift the outcome sharply.

Common mistakes

1. Fixed costs don't change with volume (rent, salaries) — this quietly costs you over time.
2. Variable costs scale with each unit sold (materials, shipping) — this quietly costs you over time.
3. Lower break-even = less risk in slow months — this quietly costs you over time.
4. Raising price or cutting variable cost lowers break-even units — this quietly costs you over time.
5. Use break-even before launching products, hiring, or opening locations — this quietly costs you over time.

What to do next

Use our Break-Even Calculator to model your situation — change one input at a time to see what moves the result most.