Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 680 units @ $5e $30,00e Purchases: anuary 10: 600 units$55 January 20: 1,200 units $58 Sales: January 12: 900 units anuary 28: 800 units Required Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses FIFO. Ending inventory Cost of goods sold