an initial value of $1,000 and a final value of $2,000 over the course of four years would yield a CAGR of 21.7%. Return on investment, or ROI, is the percentage increase or decrease of an ...

ROI is an important measure of an investment's performance but it has some drawbacks. Andrew Beattie was part of the original editorial team at Investopedia and has spent twenty years writing on a ...