Compares restoration options by cost-per-year over expected lifespan.
Option costs — Cost per unit. Includes direct expenses; verify with invoices for accuracy. Example: 0.1.
Option costs is required
expected lifespans — Health measurement. Use consistent units and calibrated tools for reliable tracking. Example: 0.101.
expected lifespans is required
Compares restoration options by cost-per-year over expected lifespan.
Formula
costPerYear = optionCosts ÷ expectedLifespans