Perpetual Inventory Using FIFO Beginning inventory, purchases, and sales for Item Zeta9 are as follows: Oct. 1 Inventory 64 units @ $19 7 Sale 47 units 15 Purchase 66 units @ $21 24 Sale 21 units Assuming a perpetual inventory system and using the first-in, first-out (FIFO) method, determine (a)the cost of goods sold on October 24 and (b) the inventory on October 31. a. Cost of goods sold on October 24 $ X b. Inventory on October 31 $ Feedback