Common-Size Income Statements Following is the income statement for 3M Company. Prepare common-size income statements for 2017 and 2016.

Round answers to one decimal place (i.e., 0.8867 = 88.7%). Use negative signs with answers, when appropriate.

3M Company Common-size Income Statements
($ millions)	Dec. 31, 2017		Dec. 31, 2016
Net sales	$31,657	Answer	$30,109	Answer
Operating expenses:
Cost of sales	16,001	Answer	15,040	Answer
Selling, general & admin. expenses	6,572	Answer	6,222	Answer
Research & development expenses	1,850	Answer	1,735	Answer
Gain on sale of businesses	(586)	Answer	(111)	Answer
Operating income	7,820	Answer	7,223	Answer
Interest expense	322	Answer	199	Answer
Interest income	(50)	Answer	(29)	Answer
Income before income taxes	7,548	Answer	7,053	Answer
Provision for income taxes	2,679	Answer	1,995	Answer
Net income including noncontrolling interest	$4,869	Answer	$5,058	Answer