ROI METHODOLOGY
The license is not the expensive part. The work around bad software is.
Model staff capacity, duplicate systems, implementation, payment economics, reporting/reconciliation work and measured operating change separately so the result can survive a CFO review.
Separate capacity from cash.
Saved staff time is useful capacity; it is not payroll savings unless payroll expenditure actually changes. Make each value category explicit.
Measure comparable tasks.
Use the same starting state, user role, required outcome, controls and exception handling. Count clicks, elapsed time, errors and rework.
Do not double-count benefits.
If the same minute is saved by a connected workflow, it cannot appear under accounting, EEva and compliance three times.
Use your own assumptions.
Hand off into the live calculator with every number editable.