Beginning inventory, purchases, and sales for Item Zeta9 are as follows:

Date	Line Item Description	Value
Oct. 1	Inventory	69 units @ $21
Oct. 7	Sale	55 units
Oct. 15	Purchase	57 units @ $24
Oct. 24	Sale	19 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 b. Inventory on October 31