The following are the transactions for the month of July. Required: . Calculate cost of goods available for sale and ending inventory under LIFO. Assume a periodic inventory system is used. . Calculate sales, cost of goods sold, and gross profit, under LIFO. Assume a periodic inventory system is used. Complete this question by entering your answers in the tabs below. Calculate cost of goods available for sale and ending inventory under LIFO. Assume a periodic inventory system is used. Calculate sales, cost of goods sold, and gross profit, under LIFO. Assume a per