Write a program that calculates and prints the take-home pay for a commissioned sales employee. Allow the user to enter values for the name of the employee and the sales amount for the week. Employees receive 7% of the total sales. Federal tax rate is 18%. Retirement contribution is 15%. Social Security tax rate is 9%. Use appropriate constants. Write input, display, and calculation methods. Your final output should display all calculated values, including the total deductions and all defined constants.