What does the input-output ratio of Taobao training mean and how is it calculated?
Input-output ratio, that is, ROI= sales brought by through train input/through train input.
For example, if the investment cost of your through train is 500 yuan, and the sales brought to you is 1 1,000 yuan, then your ROI is 1 1,000/500 = 2. Then your input-output ratio is 2.