Markus Company's common stock sold for $2.75 per share at the end of this year. The company paid a common stock dividend of $0.55 per share this year. It also provided the following data excerpts from this year's financial statements: Ending Beginning Balance Balance Cash $ 35,000 $ 30,000 Accounts receivable $ 60,000 $ 50,000 Inventory $ 55,000 $ 60,000 Current assets $ 150,000 $ 140,000 Total assets $ 450,000 $ 460,000 Current liabilities $ 60,000 $ 40,000 Total liabilities $ 130,000 $120,000 Common stock, $1 par value $ 120,000 $ 120,000 Total stockholders' equity $ 320,000 $ 340,000 Total liabilities and stockholders' equity $ 450,000 $ 460,000 Sales (all on account) Cost of goods sold Gross margin Net operating income Interest expense Net income This Year $ 700,000 $ 400,000 $ 300,000 $ 140,000 $ 8,000 $ 92,400 4. What is the return on total assets (assuming a 30% tax rate)? (Round your percentage answer to 1 decimal place (i.e., 0.1234 should be entered as 12.3).) Return on total assets % 7. What is the amount of working capital and the current ratio at the end of this year? (Round "Current ratio" to 2 decimal places.) Working capital Current ratio 8. What is the acid-test ratio at the end of this year? (Round your answer to 2 decimal places.) Acid-test ratio 9. What is the accounts receivable turnover and the average collection period? (Use 365 days in a year. Round your intermediate and final answers to 2 decimal places.) Accounts receivable turnover Average collection period days