Need help with FILO, LIFO, and weighted average cost please.

Jan. 1 Periodic inventory by three methods, cost of goods sold The units of an item available for sale during the year were as follows: Inventory 30 units at $120 Mar, 10 Purchase 70 units at $132 Aug. 30 Purchase 20 units at $136 Dec. 12 Purchase 80 units at $142 There are 60 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the ending inventory cost and the cost of goods cold by three methods. Round interim calculations to one decimal and final answers to the nearest whole dritat Cost of Ending Inventory and cost of Goods Sold Inventory Method Ending Inventory Cost of Goods Sold First in first-out (FFO) 5 Lost in first-out (LIFO) Weighted average cout 10