Question 4: Date Quantity Per Unit Total Cost Jan 1, Beginning Inventory 100 @$18.00 = $ 1,800.00 Mar 4, Purchase 400 @$19.00 = 7,600.00 May 8, Purchase 800 @$18.25 = 14,600.00 Nov 3, Purchase 500 @ $20.40 = 10,200.00 Merchandise Available 1,800 =$ 34,200.00 Five hundred units are unsold. Using the average cost method under a periodic inventory system, how much is the cost assigned to the ending merchandise inventory?