Perpetual inventory using LIFO- Beginning inventory, purchases, and sales for Item 884x are as follows: Assuming a perpetual inventory system and using the last-in, first-out (LIFO) method, determine (o) the cost of goods sold on July 27 and (b) the inventory on July 31. Perpetual inventory using weighted average Beginning inventory, purchases, and sales for WCS 12 are as follows: a. Assuming a perpetual inventory system and using the weighted average method, determine the weighted overage unit cost after the October 22 purchase. Round your answer to two decimal places. 3 per unit b. Assuming a perpetual inventory system and using the weighted average mothod, determine the cost of goods sold on October 29 , Round your "average unit cost" to two decimat places. 1 c. Assuming a perpetual inventory bystem and using the welghted average method, determine the inventory on October 31 , Round your "average unit cost" to two decimal places