Thomas Manufacturing had 4 units of their product in inventory at $250 per unit to start the month. During the month, they purchased an additional 7 units at $250 per unit and another 12 units at $275 per unit. Also, at the end of the month, they sold 12 units and ended the month at 8 units. Calculate their ending inventory and cost of goods sold using one of the following: LIFO, FIFO or Average Cost methods. Show all computations.