Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 530 units $55$29,150 Purchases: January 10:530 units $60 January 20:1,060 units $64 Sales: January 12: 820 units January 28: 650 units Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses LIFO and a perpetual inventory system