The balance sheets for Plasma Screens Corporation and additional information are provided below. 2017 $ PLASMA SCREENS CORPORATION Balance Sheets December 31, 2018 and 2017 2018 Assets Current assets: Cash 138,880 Accounts receivable 74,000 Inventory 93,000 Investments 3,800 Long-term assets: Land 460,000 Equipment 770,000 Less: Accumulated depreciation (408,000) 118,000 90.000 78,000 1,800 460,000 650,000 (248,000) Total assets $ 1,131,680 $ 1,149,800 $ 97,600 5,500 7,500 83,000 11,800 4,800 Liabilities and Stockholders' Equity Current liabilities: Accounts payable Interest payable Income tax payable Long-term liabilities: Notes payable Stockholders' equity: Common stock Retained earnings 100,000 200,000 680.000 241,080 680,000 170,200 Total liabilities and stockholders' equity $ 1,131,680 $ 1,149,800 Additional information for 2018: 1. Net income is $70,880. 2. Sales on account are $1,451,400. 3. Cost of goods sold is $1,120,050. Required: 1. Calculate the following profitability ratios for 2018: (Round your answers to 1 decimal place.) b. Profitability Ratios a. Gross profit ratio Return on assets c. Profit margin c. Profit margin d. Asset turnover e. Return on equity times