THE NUMBERS, EXPLAINED
How to use this calculator.
The supplied occupancy responses are assumptions. No demand elasticity is estimated; fixed costs are excluded.
Start with your inputs
Enter available room-nights, candidate nightly rates (currency), assumed occupancy at each rate (%), variable cost per occupied room-night (currency). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Available room-nights | 100 |
| Candidate nightly rates (currency) | 100,120 |
| Assumed occupancy at each rate (%) | 80,70 |
| Variable cost per occupied room-night (currency) | 30 |
A worked example
With the example inputs above, room revenues by scenario (currency) is 8000, 8400. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Room revenues by scenario (currency) | 8000, 8400 |
| Contributions by scenario (currency) | 5600, 6300 |
| Best contribution scenario (1-based) | 2 |
How this is calculated
Room revenues by scenario (currency)
Multiply rate by assumed sold room-nights.
Contributions by scenario (currency)
Deduct variable costs for assumed occupied nights.
Best contribution scenario (1-based)
Choose the first candidate with greatest contribution.
Symbols and units
- a
- Available room-nights
- b
- Candidate nightly rates (currency)
- c
- Assumed occupancy at each rate (%)
- d
- Variable cost per occupied room-night (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
The supplied occupancy responses are assumptions. No demand elasticity is estimated; fixed costs are excluded.
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?
Room revenues by scenario (currency); Contributions by scenario (currency); Best contribution scenario (1-based). 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: The supplied occupancy responses are assumptions. No demand elasticity is estimated; fixed costs are excluded.
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: Describe and Identify Cost Drivers ↗
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.
Read the quality report →