Selected Current Year Company Information Follows Calculate the Following Company Ratios:
(A)Profit Margin

Selected current year company information follows:
$$\begin{array} {| l | r| } \hline \text { Net incorne } & \$ 325,000 \\\hline \text { Net sales } & 4,700,000 \\\hline \text { Total liabilities, begirring-year } & 550,000 \\\hline \text { Total liabilities, end-of-year } & 530,000 \\\hline \text { Total stockholders' equity, begirring-year } & 760,000 \\\hline \text { Total stockholders' equity, end-of-year } & 745,000 \\\hline\end{array}$$
Calculate the following company ratios:
(a)Profit margin.
(b)Total asset turnover.
(c)Return on total assets.
(d)Return on common stockholders' equity (assume the company has no preferred stock).