Given the following: January 1 inventory April i June 1 November 1 Number purchased 42 62 52 57 213 Cost per unit $ 3 6 7 8 Total $ 126 372 364 456 $1,318 a. Calculate the cost of ending inventory using the weighted average method (ending inventory shows 63 units). (Round the "average unit cost" and final answer to the nearest cent.) Cost of ending inventory b. Calculate the cost of goods sold using the weighted average method. (Round your intermediate calculations and final answer to the nearest cent.) Cost of goods sold