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Procurement & VendorsGenerated accuracy model review: 2026-05-06
Renewal Uplift 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
- Renewal annual recurring value = renewal recurring value / renewal term months * 12. Renewal uplift percent = (renewal annual recurring value - current annual recurring value) / current annual recurring value * 100. Total renewal cost = renewal recurring value + one-time renewal fees.
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Current Annual Recurring Value: 84,000 $/yr
- Renewal Recurring Value: $198,000
- Renewal Term: 24 months
- One-Time Renewal Fees: $5,000
Expected outputs
- Renewal Uplift: 17.86%
- Renewal Annual Recurring Value: $99,000.00
- Annual Recurring Increase: $15,000.00
- Total Renewal Cost: $203,000.00
Known limitations
- This is a planning tool, not legal, accounting, sourcing, or tax advice. It does not interpret vendor terms, service levels, or contract risk.
Assumptions
- All pricing, discounts, fees, and contract values are entered by the user.
- Taxes, foreign exchange, service credits, legal terms, and non-price concessions are not inferred.
- Inputs are processed locally in the browser and are not stored by this calculator.
Unit handling
- Current Annual Recurring Value accepts values in $/yr.
- Renewal Recurring Value accepts values in $.
- Renewal Term accepts values in months.
- One-Time Renewal Fees accepts values in $.
- Renewal Uplift is displayed as a percentage.
- Renewal Annual Recurring Value is displayed as currency.
- Annual Recurring Increase is displayed as currency.
- Total Renewal 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.
- Percent outputs are displayed with two decimal places.
- Input precision follows configured step values where provided.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current renewal-uplift-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Renewal Uplift Calculator.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.