Glven the following Number purchased 52 Cost per unit $4 Total January 1 inventery Apeil 1 288 72 7 se4 June 1 621 496 November 1, 67 683 253 $1,811 a. Calculate the cost of ending inventory using the weighted-average method (ending inventory shows 73 units). (Round the "average unit cost" and final answer to the nearest cent.) Cost of ending nventorys b. Calculate the cost of goods sold using the welghted-average method. (Round your intermediate calculetions and finel answer to the nearest cent. Cost of goods sokd