a. Statement showing free cash flow of the company
|Net cash provided by operating activities||$ 3903||24255|
|- Capital expenditure||$1811||13510|
|Free cash flow||2902||10745|
b. Conclusion : Both the companies are spending almost 50% of the cash flow from operating activities in capital expenditure which is good for the future development. Also, it can be said that Amazon is retaining its entire cash in contrast with Wal Mart which is paying some portion to its shareholders.