$($Corporate income$$ tax$)$Last year$$ Sanderson, Inc. had sales of $ $3\mathrm{.}6$ million. The$$ firm's cost of goods sold came to $ $2\mathrm{.}3$million$,$ its operating expenses excluding depreciation of $ $105$ comma $000$ were $ $391$ comma $000,$ and the firm paid $ $145$ comma $000$ in interest on its bank loans. $$ Also, the corporation received $ $49$ comma $000$ in dividend income$($from a company in which it owned less than $20$ percent of its$$ shares$)$ but paid $ $23$ comma $000$ in the form of dividends to its own common stockholders. Use the corporate tax rates shown in the popup$$ window, LOADING...$,$ to calculate the$$ corporation's tax liability. What are the$$ firm's average and marginal tax$$ rates?