THE NUMBERS, EXPLAINED
How to use this calculator.
Face-value exposure worksheet, not accounting recognition or a conclusion about enforceability of expiry. All cohorts are unexpired at reporting time.
Start with your inputs
Enter unredeemed credit face values by cohort (currency), days until cohort expiry, expected redemption before expiry by cohort (%), reporting horizon (days). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Unredeemed credit face values by cohort (currency) | 1000,500 |
| Days until cohort expiry | 30,60 |
| Expected redemption before expiry by cohort (%) | 80,60 |
| Reporting horizon (days) | 45 |
A worked example
With the example inputs above, total outstanding face value (currency) is 1,500. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Total outstanding face value (currency) | 1,500 |
| Face value expiring within horizon (currency) | 1,000 |
| Expected redemption value (currency) | 1,100 |
| Expected unused face value (currency) | 400 |
How this is calculated
Total outstanding face value (currency)
Add all currently unredeemed credits.
Face value expiring within horizon (currency)
Select cohorts whose supplied expiry offset is inside the horizon.
Expected redemption value (currency)
Apply each cohort redemption assumption.
Expected unused face value (currency)
Deduct expected redemption from each cohort balance.
Symbols and units
- a
- Unredeemed credit face values by cohort (currency)
- b
- Days until cohort expiry
- c
- Expected redemption before expiry by cohort (%)
- d
- Reporting horizon (days)
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
Face-value exposure worksheet, not accounting recognition or a conclusion about enforceability of expiry. All cohorts are unexpired at reporting time.
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?
Total outstanding face value (currency); Face value expiring within horizon (currency); Expected redemption value (currency); Expected unused face value (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: Face-value exposure worksheet, not accounting recognition or a conclusion about enforceability of expiry. All cohorts are unexpired at reporting time.
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 →