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Business Finance

Break-Even Point

The level of sales at which total revenue exactly equals total costs — the point where a business stops losing money and begins to generate profit.

Break-Even Point

The break-even point is the exact level of sales at which a business's total revenue equals its total costs — neither making a profit nor incurring a loss. Below this point, the business operates at a loss. Above it, every additional sale generates profit.

The Formula

Break-Even Units = Fixed Costs ÷ Contribution Margin per Unit

Contribution Margin = Selling Price − Variable Cost per Unit

Example:

  • Monthly fixed costs: $8,000
  • Selling price per unit: $40
  • Variable cost per unit: $15
  • Contribution margin: $40 − $15 = $25
  • Break-even: $8,000 / $25 = 320 units per month

Break-Even Revenue

For businesses that prefer to think in dollars rather than units:

Break-Even Revenue = Fixed Costs ÷ Gross Margin Percentage

If the gross margin percentage is $25/$40 = 62.5%: Break-Even Revenue = $8,000 / 0.625 = $12,800/month

Fixed vs. Variable Costs

Fixed costs remain constant regardless of sales volume: rent, salaried employees, insurance, loan payments, software subscriptions.

Variable costs change with production volume: raw materials, packaging, shipping, sales commissions, per-unit labor.

Understanding this distinction is the foundation of break-even analysis.

Using Break-Even to Make Decisions

Pricing decisions: Lowering your price reduces contribution margin and raises break-even — you need more sales just to stay even. Quantify this before cutting prices.

Hiring decisions: Adding a full-time employee increases fixed costs. Break-even analysis tells you exactly how much additional revenue you need to justify the hire.

Launch decisions: Before starting a business or launching a product, break-even analysis answers: Is the volume needed to cover costs achievable in this market?

The Margin of Safety

Margin of Safety = (Actual Sales − Break-Even Sales) ÷ Actual Sales × 100

A business selling 500 units against a break-even of 320 has a 36% margin of safety — sales can drop 36% before the business goes into loss.

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