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

Oct. 1		Inventory	68 units @ $19
7		Sale	55 units
15		Purchase	54 units @ $20
24		Sale	17 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	$