THE NUMBERS, EXPLAINED
How to use this calculator.
One class term with fixed teacher and venue cost across entered scenarios; physical class capacity is not determined.
Start with your inputs
Enter enrollment scenarios (students), tuition per student (currency), teacher cost per class term (currency), venue cost per class term (currency), materials per student (currency). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Enrollment scenarios (students) | 5,10,15 |
| Tuition per student (currency) | 100 |
| Teacher cost per class term (currency) | 500 |
| Venue cost per class term (currency) | 200 |
| Materials per student (currency) | 20 |
A worked example
With the example inputs above, term contribution by enrollment (currency) is -300, 100, 500. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Term contribution by enrollment (currency) | -300, 100, 500 |
| Break-even enrollment | 9 |
| Total teacher-and-venue cost (currency) | 700 |
How this is calculated
Term contribution by enrollment (currency)
Deduct teacher, venue and per-student material costs from tuition.
Break-even enrollment
Divide fixed term costs by contribution per student.
Total teacher-and-venue cost (currency)
Add fixed term costs.
Symbols and units
- a
- Enrollment scenarios (students)
- b
- Tuition per student (currency)
- c
- Teacher cost per class term (currency)
- d
- Venue cost per class term (currency)
- e
- Materials per student (currency)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions and limits
One class term with fixed teacher and venue cost across entered scenarios; physical class capacity is not determined.
Calculations use the values you enter. Blank or invalid inputs show an error instead of silently substituting zero. Results are displayed to useful precision; calculations retain the underlying numeric precision.
Questions about this tool
What does the result tell me?
Term contribution by enrollment (currency); Break-even enrollment; Total teacher-and-venue cost (currency). The result applies to the method and inputs described above. Check the units and assumptions before using it in a decision.
Why might another calculator differ?
Differences in units, rounding, timing or model definitions can produce different answers. Compare the input definitions and the method, rather than only the final number. For this tool: One class term with fixed teacher and venue cost across entered scenarios; physical class capacity is not determined.
Are my inputs stored or sent to AI?
Calculations on this page happen in your browser. The separate AI question finder sends its submitted conversation to OpenAI; these calculator fields are not sent. Favourites and recent tool names are stored locally. A shared link contains the inputs you choose to include.
Further reading
OpenStax: Calculate a Break-Even Point in Units and Dollars ↗
Background reading; this does not imply endorsement or independent review of SumFizz.
Review status
Software example and browser checks are recorded in our quality report. No external expert review is claimed. Created with coding assistance; calculations run as ordinary browser code.
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