Make the numbers work first.
Model one workflow. Understand its current cost, estimate what changes and account for what it takes to operate. No email required.
Start with an illustrative example. Replace every assumption with your observed data. Time saved becomes a financial benefit only when you can put it to use.
Calculation formulas & limitations
All amounts are USD. A 52-week year is assumed.
Labor = people × weekly hours/person × hourly cost × 52Errors = weekly runs × 52 × error rate × incremental error costGross = labor × labor reduction × realization + errors × error reductionRecurring net = gross − 12 × (management + other monthly costs)First-year net = recurring net − implementationFirst-year ROI = first-year net ÷ total first-year investmentPayback = implementation ÷ monthly recurring net benefitTotal first-year investment includes implementation, management and other operating costs. Payback is calculated only when recurring net benefit is positive. Savings start immediately in this simplified model; adjust downward for ramp time. Taxes, discounting, financing and revenue uplift are excluded. Capacity released is not automatically cash saved.