Given the following: Number Cost per purchased unit Total January 1 inventory 46 $ 4 $ 184 April 1 66 7 462 June 1 56 8 448 November 1 61 229 9 549 $ 1,643 a. Calculate the cost of ending inventory using the weighted-average method (ending inventory shows 67 units). Note: 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. Note: Round your intermediate calculations and final answer to the nearest cent. Cost of goods sold