14. The owner of Harrys Car Sales pays each salesperson a commission based on his or her quarterly sales. The sales ranges and corresponding commission rates are shown in Figure 6-43. The program should display an error message if the sales amount is less than 0.

Figure 6-43

a. Create an IPO chart for the problem, and then desk-check the algorithm seven times, using sales of 20000, 20001, 30000, 50000, 50001, 75000, and 3.

b. List the input, processing, and output items, as well as the algorithm, in a chart similar to the one shown earlier in Figure 6-27. Then code the algorithm into a program.

I need help with the code for this program!

Quarterly sales ($) 0-20,000 20,001-50,000 Commission multiply the sales by 5% multiply the sales over 20,000 by 7% and then add 1,000 to the result multiply the sales over 50,000 by 10% and then add 3,100 to the result 50,001 or more Figure 6-43 C++ instructions char size = ''; char coupon = ''; IPO chart information Input size (Mor L) coupon status (y or N) Processing none Output price double price = 0.0; Algorithm: 1. enter the size 2. if (the size is not Mor L) display "Please enter either Mor L." else cout > size; size = toupper(size); if (size != 'M' && size != 'L') cout > coupon; if (toupper(coupon) == 'Y') price -= 2; //end if } //end if cout > size; size = toupper(size); if (size != 'M' && size != 'L') cout > coupon; if (toupper(coupon) == 'Y') price -= 2; //end if } //end if cout