Payroll Calculator - Program Must Calculate And Display The Total Pay In The Total Pay Label

The pay rates for the project are:

a. Level 1 - $10.00
b. Level 2 - $12.00
c. Level 3 - $14.00
d. Level 4 - $16.00
e. Benefit Deduction Rate - 0.10
f. Overtime Factor - 1.5

For ease of program maintenance, all of the above rates and factors must be stored in module level constants. All references to pay rates in the program must refer to the module level constants.

When the Calculate button is clicked:

a. The value in the Hours text box must be validated to insure that it is numeric value greater than zero.

1. If the value is not valid, a message box must appear as shown below and the user must be offered the option to continue processing or quit the program.

2. If the user chooses to continue processing, the focus must be set to the Hours text box.

3. If the user chooses to quit, the program must close immediately.

b. If the value is valid, the program must calculate and display the total pay in the Total Pay label.

1. The pay rate is determined by which Job Grade radio button is checked.

2. For hours less than or equal to 40, the total pay is the hours times the pay rate.

3. For hours greater than 40, the total pay is 40 hours times the pay rate plus the hours in excess of 40 hours times the pay rate times the Overtime Factor.

4. If the Full Time radio button is selected, the total pay must be reduced by the Benefit Deduction Rate.

5. The value displayed in the Total Pay label must be formatted with a dollar sign and with two decimal
places.

6. The focus must be set to the Hours text box.

Why i get an error when i try to run this code

Code:

Also the message box, both yes and no close the program.....