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Perpetual Inventory Using LIPO Beginning inventory, purchases, and sales for Item PK9S are as follows: January 1 Inventory 84 units $34 5 Sale 67 units 11 Purchase 93 units 536 21 Sale 78 units Assuming a perpetual Inventory system and using the last-in, first-out (FO) method, determine (a) the cost of merchandise sold on January 21 and (b) the inventory on January 31 2. Cost of merchandise sold on January 21 b. Inventory on January 31 12 Perpetual Inventory Using Weighted Average Beginning inventory, purchases, and sales for H76 are as follows: July 1 inventory 300 units at $120 Sale 210 units Purchase 360 units at $135 Sale 330 units a. Assuming a perpetual Inventory system and using the weighted average method, determine the welghted average unit cost after the July 23 purchase per unit b. Assuming a perpetual Inventory system and using the weighted average method, determine the cost of the merchandise sold on July 26. 23 26 c. Assuming a perpetual inventory system and using the weighted average method, determine the inventory on July 31