Natty Inc. sells one product, with information for June as follows: June 1 Inventory 100 units at $15 each June 11 Purchase 150 units at $16.75 each June 13 Sale 120 units June 20 Purchase 160 units at $16.25 each June 27 Sale 100 units Required: 1. Calculate Cost of Goods Sold only using the moving average method under the perpetual method. 2. Calculate Cost of Goods Sold only using the FIFO method.