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the program should be according to question

A dental Equipment Company pays its sales employees on a commission basis. The monthly salary of the sales employee is $1,000 plus 8% of their gross sales for that month For example, a salesperson who sells $10,000 worth of Diamond instruments for dentists in a month receives 1,000 plus 8% of $10,000, or a total of $1,800 Write a program that uses a while statement to input each salesperson's gross sales for last month and calculates and displays that salesperson's earings. Process one salesperson's figures at a time. To stop the program the user type "-1" and display the message "Goodbye!". Enter sales in dollars (-1 to end): 5000 Salary is: $1400.00 Enter sales in dollars (-1 to end): 8000 Salary is: 51640.00 I Enter sales in dollars (-1 to end): 9000 Salary is: S1720.00