The Robbins Corporation is an oil wholesaler. The firm's sales last year were RM1millipn, with the cost of good sold equal to RM600,000. The firm paid interest of RM200,000 and its cash operating expenses were RM100,000. Also the firm received RM40,000 in dividend income(from a firm in which it owned 22% of the shares) while paying only RM10,000 in dividend to its oqn stockholders. Depreciation expense was RM50,000. Compute the firm's tax liability. Based on your answer, does management need to take any additional action? What are the firm's average and marginal tax rates?