THE NUMBERS, EXPLAINED
How to use this calculator.
Counts refer to billed pages, with duplex treatment already resolved. Supplied operating cost must cover the same reporting period.
Start with your inputs
Enter monochrome page counts by member, colour page counts by member, monochrome charge per page (currency), colour charge per page (currency), total supplier printing cost (currency). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Monochrome page counts by member | 100,50 |
| Colour page counts by member | 20,40 |
| Monochrome charge per page (currency) | 0.05 |
| Colour charge per page (currency) | 0.2 |
| Total supplier printing cost (currency) | 15 |
A worked example
With the example inputs above, member print charges (currency) is 9, 10.5. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Member print charges (currency) | 9, 10.5 |
| Total recovered printing charges (currency) | 19.5 |
| Cost recovery surplus (currency) | 4.5 |
How this is calculated
Member print charges (currency)
Price each member monochrome and colour usage separately.
Total recovered printing charges (currency)
Sum member usage charges.
Cost recovery surplus (currency)
Deduct supplied printer operating cost.
Symbols and units
- a
- Monochrome page counts by member
- b
- Colour page counts by member
- c
- Monochrome charge per page (currency)
- d
- Colour charge per page (currency)
- e
- Total supplier printing 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
Counts refer to billed pages, with duplex treatment already resolved. Supplied operating cost must cover the same reporting period.
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?
Member print charges (currency); Total recovered printing charges (currency); Cost recovery surplus (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: Counts refer to billed pages, with duplex treatment already resolved. Supplied operating cost must cover the same reporting period.
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 →