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Perpetual Inventory Using FIFO Beginning inventory, purchases, and sales for item Zeta9 are as follows: Oct. 1 Triventory 68 units $21 7 Sale 46 units 15 Purchase 74 units $22 24 Sale 29 US Assuming a perpetual inventory system and using the first-o, first out (FFO) method, determine the cost of goods sold on October 24 and (b) the inventory on October 01 a. Cost of goods sold on October 24 1. Inventory on October 31