THE NUMBERS, EXPLAINED
How to use this calculator.
Attendance is a scenario expectation, not a peak-availability guarantee. All attending members and guests require one desk each.
Start with your inputs
Enter members by plan type, assumed daily attendance by plan (%), usable desks, guest desks required per day. Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Members by plan type | 40,20 |
| Assumed daily attendance by plan (%) | 50,80 |
| Usable desks | 30 |
| Guest desks required per day | 4 |
A worked example
With the example inputs above, expected member desk demand is 36. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Expected member desk demand | 36 |
| Total expected occupied desks | 40 |
| Whole desk gap | 10 |
How this is calculated
Expected member desk demand
Multiply members by plan-specific attendance assumptions.
Total expected occupied desks
Add guest desk demand.
Whole desk gap
Round member demand upward and compare with desks.
Symbols and units
- a
- Members by plan type
- b
- Assumed daily attendance by plan (%)
- c
- Usable desks
- d
- Guest desks required per day
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
Attendance is a scenario expectation, not a peak-availability guarantee. All attending members and guests require one desk each.
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 member desk demand; Total expected occupied desks; Whole desk gap. 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: Attendance is a scenario expectation, not a peak-availability guarantee. All attending members and guests require one desk each.
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 →