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Procurement & VendorsGenerated accuracy model review: 2026-05-06
Per-User Software Cost Calculator accuracy and testing
This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.
Formula source
- Monthly total cost = subscription cost + implementation cost / contract months + admin hours * admin hourly cost. Cost per active user = monthly total cost / active users.
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Monthly Subscription Cost: $12,000
- Paid Seats: 300
- Active Users: 240
- Implementation Cost: $24,000
- Contract Months: 12 mo
- Admin Hours: 12 hr/mo
- Admin Hourly Cost: 85 $/hr
Expected outputs
- Cost per Active User: $62.58
- List Cost per Paid Seat: $40.00
- Monthly Total Cost: $15,020.00
- Annualized Total Cost: $180,240.00
Known limitations
- This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
- Use the result as a planning estimate unless the calculator page states a stricter purpose.
Assumptions
- All prices, thresholds, seat counts, and credits are entered by the user.
- The calculator does not pull live vendor pricing or interpret contract language.
- Inputs are processed locally in the browser and are not stored by Calwarden.
Unit handling
- Monthly Subscription Cost accepts values in $.
- Paid Seats accepts numeric values.
- Active Users accepts numeric values.
- Implementation Cost accepts values in $.
- Contract Months accepts values in mo.
- Admin Hours accepts values in hr/mo.
- Admin Hourly Cost accepts values in $/hr.
- Cost per Active User is displayed as currency.
- List Cost per Paid Seat is displayed as currency.
- Monthly Total Cost is displayed as currency.
- Annualized Total Cost is displayed as currency.
Rounding rules
- Number displays use up to 2 decimal places in the calculator UI.
- Currency outputs are displayed with standard US dollar formatting.
- Input precision follows configured step values where provided.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current per-user-software-cost-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Per-User Software Cost Calculator.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.