Fixed costs and contribution margin
Breakeven analysis determines the production or sales volume at which total revenue equals total cost, yielding zero profit. The math is simple: divide fixed costs (rent, salaries, insurance, facilities that don't change with output) by contribution margin (price per unit minus variable cost per unit). The result is the breakeven volume. If a manufacturer has 500,000 dollars in annual fixed costs and each product sells for 50 dollars with 20 dollars in variable costs (materials, labor), then contribution margin is 30 dollars. Breakeven volume is 500,000 divided by 30, or roughly 16,667 units. Selling 16,667 units yields revenue of 833,350 dollars and total costs of 833,350 dollars, resulting in zero profit. Below this volume, the business loses money. Above it, the business is profitable.
Using breakeven for pricing and capacity decisions
Breakeven analysis informs pricing and capacity strategy. Raising price increases contribution margin, lowering breakeven volume. Lowering variable costs also decreases breakeven. Conversely, expanding fixed costs (hiring, opening a new facility) raises breakeven, so you need higher sales to be profitable. A business might accept higher fixed costs if the market grows fast enough to reliably exceed the new breakeven. Breakeven also reveals the margin of safety: if current sales are 25,000 units and breakeven is 16,667 units, the safety margin is about 33 percent. This cushion absorbs demand drops before losses begin. Companies in stable, low-growth industries tend toward lower fixed costs and higher breakeven margins of safety, whereas fast-growth companies willingly incur higher fixed costs in anticipation of scaling.