Below shows the sales and salary of six employees working at XYZ Manufacturing Corporation. In this corporation, all salesperson are paid 2.5% commission on sales up to 30,000, 4% commission on sales from 30,000 to 60,000, and 5% on sales that exceed 60,000. Some employees are paid monthly salaries in addition to commissions. Complete the table below and answer the questions that follow. Salesperson Sales Salary Gross Pay Arwin 45,000 0 Brian 30,000 1,000 Cristy 55,000 2,000 Delfin 75,000 500 Emma 50,000 1,500 Florina 80,000 0 How much is the total sales and gross pays? Who has the highest gross pay? Who has the lowest gross pay?