The companys income statements for the years ended December 31, 2017 and 2016, follow.

For Year Ended December 31	2017						2016
Sales				$	695,000					$	620,000
Cost of goods sold	$	423,950					$	390,600
Other operating expenses		215,450						142,600
Interest expense		11,400						13,400
Income taxes		9,550						8,675
Total costs and expenses					660,350						555,275
Net income				$	34,650					$	64,725
Earnings per share				$	2.13					$	3.98

Evaluate the company's efficiency and profitability by computing the following for 2017 and 2016.

(1) Profit margin ratio.

(2) Total asset turnover.

3) Return on total assets.