[The following information applies to the questions displayed below] The following are the transactions for the month of July. Required: a. Calculate cost of poods available for sale and ending inventory under FFO. Assume a periodic inventory system is used. b. Calculate sales, cost of goods sold, and gross profit, under FiFO. Assume a periodic inventory system is used Complete this question by entering your answers in the tobs below. Calculate sales, cost of goods sold, and gross profit, under FIFO. Assume a periodic inventory system is used