Following are selected financial statement data from 3M Company for 2015 through 2018.

$ millions	Total Assets	Net Income	Sales
2015	$33,212	$4,938	$31,182
2016	33,235	5,159	31,012
2017	38,367	4,966	32,607
2018	36,865	5,470	33,748

a. What was 3M Companys return on assets (ROA) for 2016, 2017, and 2018? Round answers to one decimal place (ex: 0.2345 = 23.5%).

2016	2017	2018
Answer	Answer	Answer

b. Determine profit margin (PM) for each of the three years 20162018. Round answers to one decimal place (ex: 0.2345 = 23.5%).

2016	2017	2018
Answer	Answer	Answer

c. Determine asset turnover (AT) for each of the three years 20162018. Round answers to two decimal places.

2016	2017	2018
Answer	Answer	Answer

d. What factor is mainly responsible for the change in 3Ms ROA from 2016 to 2017? Is it profit margin or asset turnover or both? AnswerAsset turnoverProfit marginBoth

e. What factor is mainly responsible for the change in 3Ms ROA from 2017 to 2018? Is it profit margin or asset turnover or both?