The ROI Calculation Framework
Systematic ROI calculation prevents over-optimism and under-estimation, enabling informed investment decisions.
Component 1: Staff Time Savings
Formula: (Hours saved per month × Loaded hourly rate × 12 months)
Example (60 exceptions monthly):
- Current time: 30 hours monthly
- With AI (60% automation): 12 hours monthly
- Savings: 18 hours monthly
- Annual: 18 × $48 × 12 = $10,368
Component 2: Working Capital Improvement
Formula: (DSO improvement days × Average receivables ÷ 365 × Cost of capital)
Example ($8M receivables, 5-day DSO improvement):
- Working capital freed: $8M × 5 ÷ 365 = $109,589
- Annual savings at 6%: $109,589 × 0.06 = $6,575
Applies only to AR collections
Component 3: Pattern Prevention
Formula: (Recurring issues prevented × Average resolution cost)
Example:
- 8 customers chronically late
- Each requires 3 extra contacts monthly = 24 contacts
- Cost: 24 × 0.5 hours × $48 = $576 monthly
- Annual: $6,912
Component 4: Opportunity Cost
Formula: (Strategic work value enabled)
Example:
- Controller freed 10 hours monthly
- Vendor negotiations save $40,000 annually
- Process improvements add $20,000 value
- Annual opportunity value: $60,000
Total Annual Benefit
Example calculation:
- Staff time: $10,368
- Working capital: $6,575
- Pattern prevention: $6,912
- Opportunity cost: $60,000
Total: $83,855 annually
Investment Costs
Year 1: $37,000 (implementation + platforms + staff time) Years 2-3: $7,000 annually (platforms + oversight)
3-year investment: $51,000
ROI Calculation
Payback period: $37,000 ÷ $83,855 annual benefit = 5.3 months
3-year ROI:
- Total benefit: $251,565 (3 years)
- Total cost: $51,000
- Net benefit: $200,565
- ROI: 393%
Conservative Assumptions
Use 60% automation rate, not 80%Exclude opportunity cost if uncertainUse actual loaded rates, not estimatesOnly count working capital for collections
The Reality
Systematic ROI calculation using staff time, working capital, pattern prevention, and opportunity cost provides realistic projections.
Conservative assumptions: 60% automation, exclude uncertain benefits, use actual rates.
Typical ROI: 6-12 month payback, 200-400% three-year return.