Populating a dynamic table changing two inputs in excel

[Neverdom]

I have 3 inputs Say product price,loan period and monthly product sales. What I want is if the user changes the loan period I want to populate the table accordingly. I just can't figure out a way. If you think there is better way to show what I am trying to show as a table format I am open to suggestions as well.

Thanks in advance for all the help.