having troubles on 15 16 and 18. I thought 18 should just be 0.55 / 70 but I guess not. Thanks in advance

Measures of liquidity, Solvency, and Profitability The comparative financial statements of Marshall Inc. are as follows. The market price of Marshall common stock was $ 70 on December 31, 20Y2. Marshall Inc. Comparative Retained Earnings Statement For the Years Ended December 31, 20Y2 and 2041 20Y2 2011 Retained earnings, January 1 $2,319,325 $1,957,075 Net income 540,000 400,900 Total $2,859,325 $2,357,975 Dividends: On preferred stock $8,400 $8,400 On common stock 30,250 30,250 Total dividends $38,650 $38,650 Retained earnings, December 31 $2,820,675 $2,319,325 Marshall Inc. Comparative Income Statement For the Years Ended December 31, 20Y2 and 2041 2012 2011 Sales $3,536,120 $3,258,010 Cost of goods sold 1,227,860 1,129,630 Gross profit $2,308,260 $2,128,380 $800,360 $987,460 Selling expenses Administrative expenses 681,780 579,930 Total operating expenses $1,482,140 $1,567,390 Income from operations $826,120 $560,990 Other revenue 43,480 35,810 $869.600 $596.800 $480,000 Preferred $0.70 stock, $40 par Common stock, $10 par Retained earnings Total stockholders' equity Total liabilities and stockholders' equity $480,000 550,000 2,820,675 550,000 2,319,325 $3,850,675 $3,349,325 $8,086,418 $6,255,924 Determine the following measures for 20Y2, rounding to one decimal place, except for dollar amounts, which should be rounded to the nearest cent. Use the rounded answer of the requirement for subsequent requirement, if required. Assume 365 days a year. 1. Working capital 2,278,635 2. Current ratio 3.2 3. Quick ratio 2.6 4. Accounts receivable turnover 5.6 5. Number of days' sales in receivables 65.2 days 6. Inventory turnover 2.9 7. Number of days' sales in inventory 125.9 days 8. Ratio of fixed assets to long-term liabilities 1.1 9. Ratio of liabilities to stockholders' equity 1.1 10. Times interest earned 3.4 11. Asset turnover 0.5 12. Return on total assets 11.1 % 13. Return on stockholders' equity 15 % 14. Return on common stockholders' equity 17 % 15. Earnings per share on common stock 16. Price-earnings ratio 17. Dividends per share of common stock 0.55 18. Dividend yield 0.78 X %