Wireless Corporation began 2016 with retained earnings of $300 million. Revenues during the year were $530 million, and expenses totaled $370 million. Wireless declared dividends of $63 million. What was the company's ending balance of retained earnings? To answer this question, prepare Wireless's statement of retained earnings for the year ended December 31. 2016. complete with its proper heading. Prepare the statement of retained earnings. (Enter all amounts in millions. Include a subtotal after the "Add" line of the statement.)