Dec 1 Beginning inventory 200 units @ $50.00 per unit Dec 5 Purchase 250 units @ $55.00 per unit Dec 9 Sales 350 units @ $80.00 per unit Dec18 Purchase 100 units @ $60.00 per unit Dec 25 Purchase 250 units @ $65.00 per unit Dec 29 Sales 200 units @ $100.00 per unit Valley Company uses a perpetual inventory system. Using the weighted average system the cost of goods sold is $30707, gross profit is $17293 and ending inventory is $15293. show me how to get to the answers given