What problem does this solve?
Estimate the units and revenue needed to cover fixed costs with a positive contribution per unit.
Step by step in ViBytes Tools
- Enter fixed costs, unit price and variable cost per unit.
- Calculate the contribution and break-even point.
- Distinguish theoretical units from the required whole units.
Worked example and how to check it
Input: Fixed costs 1000; unit price 50; variable cost 30.
Expected result: Contribution 20; break-even 50 units; revenue 2500.
Common mistakes and decisions
Use the same time period for costs and sales: do not mix monthly rent with annual fixed costs. Unit contribution is price minus variable cost. When break-even is fractional, saleable units are rounded up; displayed revenue uses that whole-unit quantity.
Limits before you continue
- If price minus variable cost is zero or negative, this model has no finite break-even point.
- Assumes constant prices and costs and that all units are sold. It does not model taxes, inventory or real demand.
Frequently asked question
What if price equals variable cost?
Contribution is zero and cannot cover positive fixed costs. The model rejects zero or negative contribution rather than showing a misleading break-even point.