average cost and periodic ! highlight answer please

Shown below is the activity for one of the products of Random Creations January 2 balance, 80 units @ $50 $4,000 Purchase January 18 40 units 551 January 28: 40 units @ $52 Sales: January 121 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) 5 Ending inventory Cost of goods sold 5,329