1. Calculate cost of ending Inventory and cost of goods sold using perlodic FIFO, LIFO, and Weighted Average Cost methods. 2) Calculate both the Ending Inventory and Cost of Goods Sold using Periodic LIFO. 3) Using Periadic Weighted Average, first calculate the cost per unit using the formula below. Vext, apply that same cost per unit to cakulate both the Ending Inventory and Cost of Goods Sold. 4) Use the given information and your calkulated numbers to complete the Cost of Goods Sol I iauation below for all three inventorv methods. (A- numbers should be positive.]