6. Selected information from the comparative financial statements of Jackson Company for the years ended December 31, 2021 and 2020 appears below: Net sales Cost of goods sold Interest expense Net income before income tax Net income after income tax Total assets Total liabilities Total stockholders' equity 2021 478,500 276,300 9,700 67,250 46,050 317,100 181,400 135,700 2020 426,250 250,120 10,700 52,680 39,900 288,000 167,300 120,700 Required: Compute the following ratios relating to the year ended December 31, 2021. (a) Debt ratio. (e) Equity ratio. (c) Debt-to-equity ratio. (d) Times interest earned. (e) Profit margin ratio. (f) Gross margin ratio. (g) Return on total assets