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Return on investment
Return on investment (ROI) is a ratio between net profit (over a period) and cost of investment (resulting from an investment of some resources at a point in time)
Return on investment is a ratio between net profit and cost of investment. A high ROI means the investment’s gains compare favourably to its cost. As a performance measure, ROI is used to evaluate the efficiency of an investment or to compare the efficiencies of several different investments.
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