Return On Investment (ROI)
A way to measure the profitability of the investment you make in marketing, sales, etc. If the ROI on an investment is negative, it generally means you’re losing money on that endeavor.
Measuring the ROI on marketing efforts is a savvy way to ensure you’re putting your money into the strategies that bring results.
To calculate ROI use the formula ROI = (Current Value of Investment−Cost of Investment)/Cost of Investment