Shown below is activity for one of the products of Denver Office Equipment January 1 balance, 630 units @ $55 $34,650 Purchases: January 10: January 20: Sales: January 12: January 28: Required: 630 units $60 1,260 units $62 900 units 770 units Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses FIFO Ending inventory Cost of goods sold