ROI Calculator
Calculate return on investment, profit and percentage return online with a clear ROI calculator.
ROI calculator for UK business and investment decisions
Enter the total return and the original investment to calculate ROI, monetary gain and percentage return. Use the same currency for both figures.
Return on investment formula
ROI = (return − investment) ÷ investment × 100. A positive answer is a gain; a negative answer is a loss. ROI is useful for comparing options but does not by itself account for time, risk or cash-flow timing.
How do you work out percentage return?
Subtract the starting investment from the final return, divide by the starting investment and multiply by 100.
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