Inventory Evaluation The following inventory transactions took place for NPR Corporation for the month of May: Date Event Quantity Quantity Cost price 01-May Beg. Inventory 100 $2.25 05-May Purchase 2,500 $2.30 10-May Purchase 850 $2.35 15-May Sale 2,000 25-May Purchase 4,000 $2.38 30-May Sale 1,000 Required: a) Assuming that the periodic Inventory method is used, calculate the Ending Inventory Cost and the Cost of Goods Sold for NPR Corporation at May 31 under the weighted average cost formula. (4 marks b) Assuming that the perpetual inventory is used, calculate the Ending Inventory Cost for NPR Corp.at May 31 under the FIFO cost formula and under the moving weighted average formula