Return on investment (ROI) is a video that simply explains ROI as a financial metric that measures the probability of gaining a return from an investment. ROI is a ratio, usually expressed as a percentage. It compares the gain or loss from an investment relative to its cost. A high ROI means the gain from an investment compares favourably to its cost. In this video Eve Ash explains how Return on Investment works and where it is applicable. Learn that ROI measures the probable profitability of investments; Understand that ROI helps with evaluating and comparing options, activities and strategies.; Recognize that ROI enables organizations or individuals to decide where to invest to get the best results; Learn to calculate ROI;