Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 510 units @ $60 $30,600 Purchases: January 510 units @ $65 10: January 1,020 units @ $69 20: Sales: January 740 units 12: January 760 units 28: Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses average cost and a periodic inventory system. (Do not round intermediate calculations. Round your final answers to nearest whole dollar amount.) Ending inventory Cost of goods sold