(Corporate income tax) Last year Sanderson, Inc. had sales of $3.0 million. The firm's cost of goods sold came to $2.0 million, its operating expenses excluding depreciation of $100,000 were $400,000, and the firm paid $150,000 in interest on its bank loans. Also, the corporation received $50,000 in dividend income (from a company in which it owned less than 20 percent of its shares) but paid $25,000 in the form of dividends to its own common stockholders. Use the corporate tax rates shown in the popup window, to calculate the corporation's tax liability. What are the firm's average and marginal tax rates? The firm's tax liability for the year is $(Round to the nearest dollar.) The firm's average tax rate is % (Round to two decimal places.) The firm's marginal tax rate is % (Round to the nearest integer.)