Write a program that asks user to enter an item's wholesale cost and its mark-up percentage. It should then display the item's retails price. The program should implement function in the code. Demonstrate a loop for calculation of retail price.
Formula:  wholesaleCost  +  (percentage/100  * wholesaleCost)
Sample of output:
Enter item wholesale cost: 10
Enter markup percentage: 75
Retail price: 17.50
Calculate again? (Enter Y or N): Y
Enter item wholesale cost: 10
Enter markup percentage: 50
Retail price: 15.00
Calculate again? (Enter Y or N): N
Total marked up price is RM12.50