1-Nov	Inventory		20 units @ $20
4-Nov	Sold		10 units
10-Nov	Purchased		30 units @ $21
17-Nov	Sold		20 units
30-Nov	Purchased		10 units @ $22

Part 1: Using the perpetual system, costing by the first-in, first-out method, what is the cost of the merchandise inventory of 30 units on November 30?

Part 2: Usinf the perpetual system, costing by the last-in, first-out method, what is the cost of the merchandise sold for November?