Return on Investment (ROI) / 投资回报率

Return on Investment (ROI): A standard measure of project profitability, this is the discounted profits over the life of the project expressed as a percentage of initial investment.

投资回报率(ROI):一项衡量项目收益的标准，它是项目在整个生命周期中的收益折现与初始投资的百分比。