Shown below is the activity for one of the products of Random Creations: January 1 balance, 80 units @ $50 $4,000 Purchases: January 18: 40 units @ $51 January 28: 40 units @ $52 Sales: January 12: 30 units January 22: 30 units January 31: 45 units Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Random Creations uses average cost and a periodic inventory system. (Round intermediate calculations to two decimal numbers. Round your final answers to nearest whole dollar amount.) Ending inventory Cost of goods sold