assist please

Salamanca Industries uses a periodic Inventory system. The following Information is available for the month of November Nov. 1 On hand, 50 units at $15.00 each $ 750.00 5 Purchased, 115 units at $15.50 each 1,782.50 16 Purchased, 75 units at $16.20 each 1,215.00 Total Cost of Goods Available for Sale: $ 3,747.50 Units Sold: 160 units Ending Inventory: 80 units Based on the Information above, compute the dollar amount of Cost of Goods Sold and Ending Inventory under all three of the cost flow method listed here: A) FIFO - Calculate COGS and El B) LIFO - Calculate COGS and El C) Weighted Average - Calculate COGS and El