2. Crazy Al's Computer Emporium is a retail seller of home computers. The sales staff at Crazy Al's work strictly on commission. At the end of the month, each salesperson's commission is calculated according to the following Table: Table Crazy Al's Commission Rate Structure Sales This Month Commission Rate Less than $10,000 $10,000-$14,999 $15,000-$17,999 5% 10% 12% 14% 16% $18,000-$21,999 $22,000 or more For example, a salesperson with $16,000 in monthly sales will earn a 12% commission ($1920.00). Another salesperson with $20,000 in monthly sales will earn a 14% commission (S2,800.00) Because the staff only gets paid once per month, Crazy Al's allows each employee to take up to $1,500 per month in advance. When sales commissions are calculated, the amount of each employee's advanced pay is subtracted from the commission. If any salesperson's commissions are less than the amount of their advance, they must reimburse Crazy Al's for the difference. Here are two examples: Beverly and John have $21,400 and $12,600 in sales, respectively. Beverly's commission is $2,996 and John's commission is $1,260. Both Beverly and John took S1,500 in advance pay. At the end of the month, Beverly gets a check for $1,496, but John must pay $240 back to Crazy Al's. Write a program that eases the task of calculating the end-of-month ommission