The text mentions that Amazon has a negative cash conversion cycle. What does this mean? Assume Amazon's Cash Conversion Cycle is -20 days. Try to estimate what this was worth to Amazon in FY 2019. Make whatever assumptions you feel are necessary. There is no "right" answer, but it is likely that some will be more reasonable than others. I would not spend more than 20 - 30 minutes on this question. Think about what's going on and how you might estimate the value and make back of the envelope calculation, i.e., your answer should be a number and you should show how you came up with it. NOTE that I am not asking you to calculate the Cash Conversion Cycle, but instead telling you to assume it's -20 and then asking you to estimate what this is worth on an annual basis.

I am not understanding on what the question is trying to say. All the textbook said that Amazon's revenue is 233 Billion on 2018