Return on investment or return on costs is a ratio between net income and 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.

What does 30% ROI mean?

A ROI figure of 30% from one store looks better than one of 20% from another for example. The 30% though may be over three years as opposed to the 20% from just the one, thus the one year investment obviously is the better option.

What does ROI stand for in marketing?

Marketing ROI is exactly what it sounds like: a way of measuring the return on investment from the amount a company spends on marketing. Avery explains that it is also referred to by its acronym, MROI, or as return on marketing investment (ROMI).