Bonus questions (correct answers here would replace an incorrect answer above but do not give extra points) f. Use the Purchase Orders table to calculate the month in which each purchase order was issued based on the PO Date. g. Use gf and qa to sum the cost of purchase orders by month; label the summed field Monthly Purchases. Bonus questions (correct answers here would replace an incorrect answer above but do not give extra points) f. Use the Purchase Orders table to calculate the month in which each purchase order was issued based on the PO Date. g. Use gf and qa to sum the cost of purchase orders by month; label the summed field Monthly Purchases