(Corporate income tax) G. R. Edwin Inc. had sales of $6.18 million during the past year. The cost of goods sold amounted to $2.5 million. Operating expenses totaled $2.44 million, and interest gipense was $22,000. Use the corporate tax rates shown in the popup window, to determine the firm'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.)