Write a program that asks the user to enter an items wholesale cost and its markup percentage. It should then display the items retail price. For example:

If an items wholesale cost is 5.00 and its markup percentage is 100%, then the items retail price is 10.00.

If an items wholesale cost is 5.00 and its markup percentage is 50%, then the items retail price is 7.50.

The program should have a function which enters and returns valid data the wholesale cost and its markup percentage.

void getData(double&,double&);

The program should have a function named

double calculateRetail(double,double);

that receives the wholesale cost and the markup percentage as arguments, and returns the retail price of the item.

The program should have a function to display the results given the wholesale cost, the markup percentage and the retail price.

void Display(double,double,double);

Input validation: Do not accept a negative values for either the wholesale cost of the item or the markup percentage