Complete this question by entering your answers in the tabs below. Caiculate cost of goods available for sale and ending inventory under weighted average cost. Assume a periodic inventory system is used. (Round "Cost per Unit" to 2 decimal places and your final answers to nearest whole dollar amount.) Required information [The following information applies to the questions displayed below.] The following are the transactions for the month of July. Required: a. Calculate cost of goods available for sale and ending inventory under weighted average cost. Assume a periodic inventory system is used. b. Calculate sales, cost of goods sold, and gross profit, under weighted average cost. Assume a periodic inventory syste used. Calculate sales, cost of goods sold, and gross profit, under weighted average cost. Assume a periodic inventory system is used. (Round "Cost per Unit" to 2 decimal places and your final answers to the nearest whole dollar amount.)