Shown below is activity for one of the products of Denver Office Equipment January 1 balance, 540 units @ $50 per unit $27,000 Purchases: January 10: January 20: Sales: January 12: January 28: Required: 540 units @ $55 per unit 1,020 units @ $56 per unit 910 units 790 units Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses FIFO. Ending inventory Cost of goods sold