The inventory data for an item for November are: 20 units at $20 10 units 30 units at $21 20 units 5 units at $22 Nov. 1 Inventory 4 Sold 10 Purchased 17 Sold 30 Purchased Using the perpetual system, costing by the first-in, first-out method (FIFO), what is the cost of the merchandise inventory of 25 units on November 30? D $540 $530 O S510