Simon Companys year-end balance sheets follow.

	At December 31			2015			2014			2013
	Assets
	Cash		$	30,200		$	36,500		$	38,000
	Accounts receivable, net			88,100			62,500			51,000
	Merchandise inventory			111,000			83,600			53,500
	Prepaid expenses			10,950			9,200			5,400
	Plant assets, net			279,000			250,000			232,000
	Total assets		$	519,250		$	441,800		$	379,900
	Liabilities and Equity
	Accounts payable		$	128,000		$	75,750		$	51,000
	Long-term notes payable secured by mortgages on plant assets			97,500			99,500			81,000
	Common stock, $10 par value			160,500			160,500			160,500
	Retained earnings			133,250			106,050			87,400
	Total liabilities and equity		$	519,250		$	441,800		$	379,900

The companys income statements for the years ended December 31, 2015 and 2014, follow.

For Year Ended December 31	2015	2014
Sales				$	695,000					$	590,000
Cost of goods sold	$	417,000					$	371,700
Other operating expenses		201,550						135,700
Interest expense		11,600						12,800
Income taxes		9,450						8,700
Total costs and expenses					639,600						528,900
Net income				$	55,400					$	61,100
Earnings per share				$	3.45					$	3.81

Evaluate the company's efficiency and profitability by computing the following for 2015 and 2014.

25. Required information

(1)	Profit margin ratio.

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26. Required information

(2)	Total asset turnover.

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27. Required information

(3)	Return on total assets.