Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 630 units @ $55 per unit $34,650 Purchases: January 630 units @ $60 per unit 10: January 1,020 units @ $62 per unit 20: Sales: January 900 units 12: January 770 units 28: Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses LIFO and a periodic inventory system. Ending inventory Cost of goods sold