THE NUMBERS, EXPLAINED
How to use this calculator.
Undiscounted scenario with stable pricing and occupancy. Excludes financing, tax and physical occupancy certification.
Start with your inputs
Enter new desks in expansion, assumed paid desk occupancy (%), monthly receipts per occupied desk (currency), added monthly rent and fixed operations (currency), monthly variable cost per occupied desk (currency), one-time fit-out cost (currency). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| New desks in expansion | 20 |
| Assumed paid desk occupancy (%) | 75 |
| Monthly receipts per occupied desk (currency) | 300 |
| Added monthly rent and fixed operations (currency) | 2500 |
| Monthly variable cost per occupied desk (currency) | 50 |
| One-time fit-out cost (currency) | 15000 |
A worked example
With the example inputs above, expected occupied added desks is 15. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Expected occupied added desks | 15 |
| Monthly incremental contribution (currency) | 1,250 |
| Fit-out simple payback (months) | 12 |
| Break-even occupied desks | 10 |
How this is calculated
Expected occupied added desks
Apply the assumed paid occupancy to new desks.
Monthly incremental contribution (currency)
Deduct variable desk costs and added fixed operations.
Fit-out simple payback (months)
Divide fit-out cost by positive incremental monthly contribution.
Break-even occupied desks
Divide added fixed costs by per-desk contribution.
Symbols and units
- a
- New desks in expansion
- b
- Assumed paid desk occupancy (%)
- c
- Monthly receipts per occupied desk (currency)
- d
- Added monthly rent and fixed operations (currency)
- e
- Monthly variable cost per occupied desk (currency)
- f
- One-time fit-out cost (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
Undiscounted scenario with stable pricing and occupancy. Excludes financing, tax and physical occupancy certification.
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?
Expected occupied added desks; Monthly incremental contribution (currency); Fit-out simple payback (months); Break-even occupied desks. 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: Undiscounted scenario with stable pricing and occupancy. Excludes financing, tax and physical occupancy certification.
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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