ROI Calculator
Measure return on investment, net profit and annualized return.
ROI and annualized return
Return on investment expresses your profit as a percentage of what you put in:
ROI = (Gain − Cost) / Cost × 100. A simple ROI ignores time, so a
40% return over one year is very different from 40% over ten. The
annualized return restates the gain as an equivalent compound
yearly rate, making investments of different lengths comparable.