Perpetual Inventory Using LIFO Beginning inventory, purchases, and sales for ftem 884X are as foliows: Assuming a perpetual inventary system and using the last-in, first-out (L.IFO) method, determine (a) 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 wCS12 are as follows: a. Assuming a perpetual inventory system and using the welghted average method, determine the weighted average unit cost after the October 22 purehase. Round your answer to two decimal places. per unit b. Assuming a perpetual inventory system and using the weighted average method, determine the cost of gocds sold on October 29. Round your "average unit cost" to two decimal places. c. Assuming a perpetual inventory system and using the weighted average method, determine the inventory on October 31 . Round your "average unit cost". to two decimal places. Perpetual Inventory Using FIFO Beginning inventory, purchases, and sales for Item Zeta9 are as follows: Assuming a perpetual inventory system and using the first-in, first-out (FIFO) method, determine (a) the cost of the goods sold on October 24 and (b) the value of inventory on hand on October 31 . a. Cost of the goods sold on October 24 b. Inventory value on October 31 X x