For the year just ended, Royal Corporation reported total manufacturing costs of 3,600,000 and cost of goods sold of 3,750,000. For the past periods, the factory overhead had been about 1/2 of materials cost and 2/5 of the conversion costs. Raw materials on January 1 of 240,000 was 6/5 of the December 31 inventory, while work in process of 160,000 on January 1 increased by 1/4 at the year-end. The finished goods inventory decreased by 1/3.

Required: Prepare statement of cost of goods sold for the year just ended, giving as much details as can be determined from the information given.