what was the percentage change in net cash provided by operating activities between 2017 and 2018?
sources and uses of cash ( in millions ) in summary , our cash flows for each period were as follows : years ended ( in millions ) dec 29 , dec 30 , dec 31 .

| Years Ended(In Millions) | Dec 29,2018 | Dec 30,2017 | Dec 31,2016 |
| :--- | :--- | :--- | :--- |
| Net cash provided by operating activities | $29,432 | $22,110 | $21,808 |
| Net cash used for investing activities | (11,239) | (15,762) | (25,817) |
| Net cash provided by (used for) financing activities | (18,607) | (8,475) | (5,739) |
| Net increase (decrease) in cash and cash equivalents | $(414) | $(2,127) | $(9,748) |

md&a consolidated results and analysis 40 .

cash_2018 = 29432
cash_2017 = 22110
decrease = cash_2018 - cash_2017
percent_change = decrease / cash_2017
answer = percent_change * 100