(dollars in thousands) This Year Last Year $88,000 $83,000 56,500 52,500 31,500 30,500 Sales Cost of goods sold Gross margin Selling and administrative expenses: Selling expenses 9,400 8,900 Administrative expenses 12,900 11,900 Total selling and administrative expenses Net operating income Interest expense Net income before taxes Income taxes Net income Dividends to common stockholders Net income added to retained earnings Beginning retained earnings Ending retained earnings $32,004 $27,560 22,300 20,800 9, 200 1,200 8,000 9,700 1,200 8,500 -3,200 3,400 4,800 356 5,100 712 4,444 4,388 27,560 23,172 equired ompute the following financial data for this year: Gross margin percentage. (Round your percentage answer to 1 decimal place (i.e., 0.1234 hould be entered as 12.3).) . Net profit margin percentage. (Round your percentage answer to 1 decimal place (i.e., .1234 should be entered as 12.3).) Return on total assets. (Round your percentage answer to 1 decimal place (i.., 0.1234 hould be entered as 12.3).) Return on equity. (Round your percentage answer to 2 decimal places (i.., 0.1234 should e entered as 12.34).) Gross margin percentage Net profit margin percentage Return on total assets 3