Simple payback period and accounting rate of return from a project's outlay and yearly cash flows — no discounting.
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Cash flows
Annual cash inflows
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Cumulative
Indicative. Payback is the time to recover the initial investment from cumulative inflows (interpolated within the year). ROI here is total net gain over investment; ARR is average annual inflow over investment. Neither discounts for time value — use the NPV/IRR tool for that.