This document discusses key concepts for evaluating investments:
1. ROI (Return on Investment) measures the profit or return from an investment compared to the cost of the investment. A higher percentage ROI means a more profitable investment.
2. NPV (Net Present Value) discounts future cash flows from an investment to determine if it has a positive or negative value today. A positive NPV means the investment should be accepted.
3. Payback Period is the number of years for an investment to recover its initial cost from cash flows. Shorter payback periods are preferable.
The document provides formulas and examples to calculate ROI, NPV, and Payback Period to evaluate potential investments. References are also