Percentage of commission received by the salesperson = 2.5% Amount of sales made by the salesperson = $8000 Then The amount of commission received by the salesperson = (2.5/100) * 8000 dollars = 2.5 * 80 dollars = 200 dollars So the salesperson receives a commission of $200 on the total sales made. I hope the procedure is clear enough for you to understand. You can use this method in future for solving similar problems without requiring any help from outside.