Shown below is activity for one of the products of Denver Office Equipment January 1 balance, 570 units 550 per unit $28.500 Purchases: January 10: 570 units $60 per unit January 20 1.000 units $61 per unit Saless January 12 1.000 units January 28: 770 units Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Derwer uses average cost and a perpetua Inventory system (Do not round Intermediate calculations. Round your final answers to nearest whole dollar amount.) Ending Inventory Cost of goods sold