July 1 July 5 July 10 July 20 July 25 beginning purchased sold purchased sold 380 units at $15 each 270 units at $17 each 400 units at $50 each 300 units at $22 each 400 units at $50 each If the company use the weighted average inventory valuation method and the periodic inventory system what would be the cost of goods sold and the cost of its ending inventory