Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 650 units & S60 639,000 Purchases: January 10: 650 units @ $65 January 20: 1,200 units $70 Sales: January 12: 1.000 units January 28: 790 units Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses overage cost periodic inventory system (Do not round intermediate calculations. Round your final answers to nearest whole dollar amount.) Ending inventory Cost of goods sold