Zoe Mitchell——Studied at the University of Edinburgh, Lives in Edinburgh, Scotland.
Return on investment. ... Return on Investment (ROI) is the ratio between the net profit and cost of investment resulting from an investment of some resource. A high ROI means the investment's gains compare favorably to its cost.read more >>
QuesHub is a place where questions meet answers, it is more authentic than Quora, but you still need to discern the answers provided by the respondents.