Annual Net Income = Annual Cash Flow - Depreciation
Accounting Rate of Return = Annual Net income / Initial Investment
Payback Period = Initial Investment / Annual Net Cash Flow
=Initial Investment / (Net Income + Depreciation)
Profitability Index = PV of future cash flows / Initial Investment
Internal Rate of Return = Use Excel Function =IRR[value, rate], 10% is default rate.
Net Present Value = Sum Present Values of cash flows (negative NPV = unacceptable)