Given the following information, determine the cost of goods sold and ending inventory at November 30 using FIFO, LIFO and Weighted Average methods under perpetual inventory system.

November 3: 15 units were purchased at $8 per unit.

November 11: 18 units were purchased at $9.50 per unit.

November 15: 15 units were sold at $45 per unit

November 18: 30 units were purchased at $10.75 per unit

November 30: 20 units were sold at $55 per