Operate a healthy business28 minutesFree lesson + quiz

Price for survival: unit economics, capacity, and break-even

Calculate contribution margin, break-even volume, owner labor, delivery capacity, and customer acquisition cost so revenue growth creates cash instead of hiding losses.

Learning map01—03

Lesson 32 visual field guide

Three moves to build this skill

Revenue growth magnifies whatever the unit economics already contain; selling more of an underpriced offer can accelerate the cash crisis.

  1. 1Calculate contribution margin and break-even units or sales
  2. 2Include owner labor, capacity, payment timing, and replacement cost in pricing
  3. 3Stress-test discounts, customer acquisition, and growth decisions

Core truth

Revenue growth magnifies whatever the unit economics already contain; selling more of an underpriced offer can accelerate the cash crisis.

Part 1

Know the economics of one unit

Define one unit—a product, hour, project, delivery, subscription, or customer period. Subtract variable costs directly caused by that unit from price to find contribution margin. Contribution margin helps cover fixed costs and then profit. Gross margin and contribution margin can differ depending on how costs are classified.

Include transaction fees, materials, shipping, subcontractors, commissions, refunds, support, rework, warranties, and incremental labor. Owner labor is not free because the owner skipped payroll. Price must eventually support a market-based role cost or the business may only be buying a job with hidden unpaid hours.

Put it into practice

Choose the top three offers. Calculate price, variable cost, contribution dollars, contribution percentage, delivery hours, and contribution per constrained hour.

Part 2

Calculate break-even and capacity

Break-even units equal fixed costs divided by contribution per unit. Break-even sales can be estimated by dividing fixed costs by contribution-margin percentage. The calculation is only useful when costs and average price reflect reality.

Compare break-even volume with actual capacity. If the company must sell 200 projects but can deliver 120, the model cannot be fixed with motivation. Change price, scope, variable cost, fixed cost, productivity, product mix, or capacity while protecting quality.

Common trap

Using revenue per hour while ignoring preparation, sales, travel, admin, collection, and rework makes service pricing appear stronger than it is.

Part 3

Stress-test discounts and customer acquisition

A ten-percent price discount can reduce contribution by much more than ten percent when margins are thin. Calculate how many additional units must be sold to earn the same contribution. Require an objective for every discount: lower acquisition cost, faster payment, lower scope, larger volume, or strategic access.

Customer acquisition cost includes advertising, sales labor, tools, commissions, offers, and the cost of unsuccessful leads. Compare it with contribution over the realistic customer relationship, not projected lifetime value that assumes perfect retention.

  • ◆Price floor: the lowest responsible price under defined scope and terms.
  • ◆Target price: supports required margin, owner pay, and reinvestment.
  • ◆Premium price: justified by added value, speed, access, or risk assumed.

Primary sources

Verify and keep learning

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Knowledge check

Test what you learned

Answer all 6 questions. A score of 75% records this lesson as complete on this device.

1. What is contribution margin per unit?
2. A service sells for $200 and has $80 of variable cost. What is contribution per service?
3. Fixed costs are $6,000 and contribution is $120 per service. What is break-even volume?
4. Why include owner labor in pricing?
5. What should happen when break-even volume exceeds delivery capacity?
6. Why can a small discount sharply reduce profit?

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