Continue your plan
Useful next calculations
When to use this calculator
- Before pricing a job, setting margin targets or reviewing hiring costs.
- When you want to test sensitivity around volume, tax, markup or overheads.
- When you need a practical estimate before committing to a budget or proposal.
- When you are modelling break-even volume as costs or prices change.
A realistic South Africa planning example
Use these sample inputs as a quick scenario test, then change one variable at a time to compare outcomes.
| Input | Value |
|---|---|
| Fixed Costs (R) | R500 |
| Selling Price Per Unit (R) | R0.30 |
| Variable Cost Per Unit (R) | R500 |
| Expected Units Sold | 1000 |
After entering these figures, focus on result first and then rerun the tool with a more cautious assumption.
How to read your results
Result
The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.
Method & assumptionsAuthoritative sources
This calculator uses the standard contribution margin method to find your break-even point. Enter your total monthly or annual fixed costs, the selling price per unit, and the variable cost per unit. The contribution margin — selling price minus variable cost — is then divided into fixed costs to produce the break-even quantity. Revenue break-even is derived by multiplying that quantity by your selling price.
The calculator assumes a single product or a consistent product mix and that costs behave in a linear, predictable way. It does not factor in stepped fixed costs (for example, a second production shift that kicks in above a certain volume), seasonal demand swings, or credit terms that delay cash receipts. Use the output as a planning guide rather than a precise operational target.
Common mistakes
- !Using an assumption that is not supported by a current local quote, bill, statement or official source.
- !Treating a generic estimate as a lender, provider, payroll or tax authority decision.
- !Mixing monthly and annual inputs without converting them consistently.
- !Testing only one scenario instead of checking how a cautious assumption changes the result.
What to do next
- Run a second scenario with a cautious assumption so you can see the downside clearly.
- Compare the result with the related calculators below before making a decision.
- Check current local rules, eligibility and provider terms before applying or committing money.
- Keep a record of the assumptions so you can update the estimate when a quote, bill or pay figure changes.
Frequently asked
Use arrow keys to navigate items, Enter or Space to expand/collapse.