Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 600 units @ $50 $30,000 Purchases: January 600 units @ $55 10: January 1,000 units @ $58 20: Sales: January 850 units 12: January 800 units 28: Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses LIFO and a periodic inventor system. Ending inventory Cost of goods sold