When developing machine learning projects is expected that the investment creates value for an organization. How can we measure the ROI of an investment in a machine learning project? For example, when we measure the dropout, should we consider the total cost of dropout and estimate gains, reducing it, for example, 5% to justify the investment and measure somehow the ROI? Are there suggestions for an approach to consider to estimate the ROI? Research addressing this the investment in the context of machine learning and the expected value generation to an organization?