Beginning inventory, purchases, and sales for WCS 12 are as follows: a. Assuming a perpetual inventory system and using the weiphted average method, determine the weighted average unit cost after the October 22 purchase. Round your answer to two decimal places. per unit b. Assuming a perpetual inventory system and using the weighted averape method, determine the cost of goods sold on October 29 , Round your "average unit cost" to two decimal places. 6. Amsuming a perpetual inventory svitem and using the welghted average method, determine the inventory con october 31 . Round your "average unit cost" to two decimat places. Beginning inventory, purchases, and sales for WCS 12 are as follows: a. Assuming a perpetual inventory system and using the weiphted average method, determine the weighted average unit cost after the October 22 purchase. Round your answer to two decimal places. per unit b. Assuming a perpetual inventory system and using the weighted averape method, determine the cost of goods sold on October 29 , Round your "average unit cost" to two decimal places. 6. Amsuming a perpetual inventory svitem and using the welghted average method, determine the inventory con october 31 . Round your "average unit cost" to two decimat places