pleaae help me find the average cost, Lifo, and FiFo

Periodic System-Calculating Ending Inventory and Cost of Sales Using Average Cost, FIFO, and LIFO Leven Company uses a periodic inventory system. The following information for the first quarter is available for the company's mer inventory. A physical inventory taken on March 31 of the current year showed 3,300 units available. a. Compute ending inventory and cost of goods sold for the quarter ended March 31 using (1) Average cost method, (2) FIFO meth LIFO method. (2) FIFO Method - Note: Do not use negative signs with any of your answers. (2) FIFO Method - Note: Do not use negative signs with any of your answers. (1) Average cost method -Note: Use the result EXACTLY as displayed above in the calculations below. - Note: Do not use negative signs with any of your answers. (3) LIFO Method - Note: Do not use negative signs with any of your answers