Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 600 units @ $50 per unit $30,000 Purchases: January 600 units @ $55 per unit 10: January 1,200 units @ $58 per unit 20: Sales: January 900 units 12: January 200 units 28: Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses FIFO. Ending inventory Cost of goods sold