Periodic inventory by three methods; cost of merchandise sold OBJ. 2, 4 The units of an item available for sale during the year were as follows:

Jan. 1 Inventory 90 units at $54 Mar. 10 Purchase 112 units at $55 Aug. 30 Purchase 100 units at $58 Dec. 12 Purchase 98 units at $60 There are 104 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost and the cost of merchandise sold by three methods, presenting your answers in the following form:

Cost Inventory Method Merchandise Inventory Merchandise Sold

a. First-in, first-out $ $

b. Last-in, first-out

c. Weighted average cost