How do you calculate Return On Investment - ROI?

Answer:
To calculate ROI, the benefit (or return of money or income gained) of an investment is divided by the cost of the investment. ROI is usually shown as a percentage. This formula can also be used to suit a number of different situations.
Here is the formula for ROI:
(Income from Investment - Cost of Investment) / Total Cost of Investment = ROI
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First answer by Sshoebeat. Last edit by Sshoebeat. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 3 [recommend question].