THE NUMBERS, EXPLAINED
How to use this calculator.
Illustrates supplied settlement rules only; excess prepayment is a remaining balance, not a determination of refund entitlement.
Start with your inputs
Enter remaining committed billing periods, price per remaining period (currency), early-exit fee as share of remaining charges (%), unapplied prepaid balance (currency), other supplied exit charge (currency). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Remaining committed billing periods | 6 |
| Price per remaining period (currency) | 50 |
| Early-exit fee as share of remaining charges (%) | 40 |
| Unapplied prepaid balance (currency) | 80 |
| Other supplied exit charge (currency) | 10 |
A worked example
With the example inputs above, remaining scheduled commitment (currency) is 300. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Remaining scheduled commitment (currency) | 300 |
| Exit charge before prepayment (currency) | 130 |
| Additional settlement payable (currency) | 50 |
| Prepayment remaining after settlement (currency) | 0 |
How this is calculated
Remaining scheduled commitment (currency)
Price all remaining committed billing periods.
Exit charge before prepayment (currency)
Apply the supplied exit percentage and fixed exit charge.
Additional settlement payable (currency)
Offset exit charges with unapplied prepayment.
Prepayment remaining after settlement (currency)
Report excess prepayment under the entered offset assumption.
Symbols and units
- a
- Remaining committed billing periods
- b
- Price per remaining period (currency)
- c
- Early-exit fee as share of remaining charges (%)
- d
- Unapplied prepaid balance (currency)
- e
- Other supplied exit charge (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
Illustrates supplied settlement rules only; excess prepayment is a remaining balance, not a determination of refund entitlement.
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?
Remaining scheduled commitment (currency); Exit charge before prepayment (currency); Additional settlement payable (currency); Prepayment remaining after settlement (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: Illustrates supplied settlement rules only; excess prepayment is a remaining balance, not a determination of refund entitlement.
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 →