Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 620 units @ $55 per unit $34,100 Purchases: January 620 units @ $60 per unit 10: January 1,240 units @ $65 per unit 20: Sales: January 930 units 12: January 760 units 28: Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses LIFO and a perpetual inventory ystem. Ending inventory Cost of goods sold