C#: Write an application that will enable a vendor to see what earnings he can expect to make based on what percentage he marks up an item. Allow the user to input the wholesale item price. In a tabular form, show the retail price of the item marked up at 5%, 6%, 7%, 8%, 9%, and 10%.

You will do this as a Windows Form application where a single text box can accept the input of the wholesale price, then have some way to display the retail price with each markup percentage after a calculate button is pressed. Create a class/object to do the actual work of the calculations (business layer). There is no need for a data class in this exercise. Use an instantiated object for your business layer. Comment your program for practice communicating with clients

I am sure I am over thinking this but I am a little lost on how to do this question. Thank you in advance for any help you can provide.