Required information [The following infomation applies to the questions displayed below.] The following are the transactions for the month of July. Required: o. Calculate cost of goods avaliable for sale and ending inventory under LIFO. Assume a periodic inventory system is used. b. Calculate sales, cost of goods sold, and gross profit, under LIFO Assume a. periodic inventoic minentory systemi is used. 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