Required information [The following infomation applies to the questions displayed below.] The following are the transactions for the month of July. Required: 9. Calculate cost of goods available for sale and ending inventory under FIFO. 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 tabs below. Complete this question by entering your answers in the tabs below. Calculate cost of goods available for sale and ending inventory under FIFO. Assume a periodic inventory system is used. Complete this question by entering your answers in the tabs below. Calculate sales, cost of goods sold, and gross profit, under FIFO. Assume a periodic inventory system is used