Determine how many units you need to sell to cover all costs. Analyze contribution margins and find your path to profitability.
Monthly rent, salaries, insurance, etc.
Materials, hourly labor, shipping per unit.
Break-Even Point
Revenue Needed
$13,350.00
Contribution/Unit
$15.00
The break-even point is where total revenue equals total costs — zero profit, zero loss. A coffee shop with $8,000/month fixed costs (rent, utilities, salaries), selling lattes at $5 with $1.50 variable cost per cup, needs to sell 2,286 lattes/month (76/day) to break even. Every latte beyond that contributes $3.50 directly to profit.
The contribution margin is the difference between selling price and variable cost per unit. It represents how much each unit “contributes” to covering fixed costs. A SaaS product at $49/month with $3 variable cost (server, payment processing) has a $46 contribution margin — a 93.9% contribution margin ratio. This is why software businesses scale so efficiently: after covering fixed costs, nearly every additional dollar of revenue is profit.
Break-even analysis reveals the sensitivity of your business to pricing changes. If raising your price from $50 to $55 (10% increase) reduces demand by only 5%, your break-even point drops significantly while profit per unit rises. Conversely, a 10% discount to boost volume requires a disproportionately large volume increase to maintain the same total profit. A product with 40% margin needs a 33% volume increase to offset a 10% price cut.
For startups and new products, the critical question is not just how many units, but how long. If your break-even is 500 units/month and you are currently selling 200/month with 15% monthly growth, you will reach break-even in approximately 7 months. Investors typically want to see a path to break-even within 18–24 months for venture-backed startups and 6–12 months for bootstrapped businesses.
Fixed costs remain constant regardless of output: rent, insurance, salaried employees, equipment leases. Variable costs change with production volume: raw materials, hourly labor, shipping, payment processing fees. Some costs are semi-variable (electricity has a base charge plus usage). For break-even analysis, classify semi-variable costs by their dominant component.
A negative contribution margin means you lose money on every unit sold — selling more makes losses worse, not better. You must either raise prices, reduce variable costs, or discontinue the product. This occasionally happens intentionally with “loss leaders” (selling below cost to attract customers who buy profitable items), but it is not sustainable as a primary strategy.
For multi-product businesses, calculate a weighted average contribution margin based on your product mix. If 60% of sales come from Product A ($20 contribution) and 40% from Product B ($10 contribution), the weighted contribution is $16. Divide total fixed costs by $16 to get the combined break-even in units.