Simon Company's year-end balance sheets follow. 2018 2017 2016 At December 31 Assets Cash Accounts receivable, net Merchandise inventory Prepaid expenses plant anseta, net Total assets Liabilities and Equity Accounts payable Long-term notes payable secured by mortgages on plant assets Common stock, $10 par value Retained earnings Total liabilities and equity 30,000 $ 35,250 $ 38,400 88,200 62,000 50,500 110,500 81,200 53,500 10,950 9,400 4,500 281,000 259,000 233,000 $520,650 $446,850 $379,900 $129,200 $ 73,500 $ 51,000 98,000 101,000 82,400 164,000 164,000 164,000 129,450 108,350 82,500 $520,650 $446,850 $379,900 The company's income statements for the years ended December 31, 2018 and 2017, follow. For Year Ended December 31 Sales Cont of goods sold Other operating expenses Interest expense Income taxes Total costs and expenses Net income Earnings per share 2018 $665,000 $399,000 192,850 11,500 9,350 612, 700 $ 52,300 2017 $ 520,000 $327,600 124,800 13,500 8,925 474, 925 $ 45, 175 2.75 Evaluate the company's efficiency and profitability by computing the following for 2018 and 2017 (1) Profit margin ratio. Profit Margin Ratio 1 Choose Denominator: Choose Numerator: Profit Margin Ratio Profit margin ratio 2018 inces (2) Total asset turnover. Total Asset Turnover Choose Denominator: Choose Numerator: Total Asset Turnover Total asset turnover times 2018: 2017: 4 times (3) Return on total assets. Return On Total Assets Choose Denominator: Choose Numerator: Return On Total Assets Return on total assets ances 2018: 2017