Beginning inventory, purchases, and sales for an inventory item are as follows: @ $23 Sep. 1 Beginning Inventory 5 Sale 27 units 16 units 28 units 29 units 17 Purchase @ $24 30 Sale Assuming a perpetual inventory system and the first-in, first-out method: a. Determine the cost of the goods sold for the September 30 sale. b. Determine the inventory on September 30