In Visual Basic, how do I display an asterisk (*) for every 100 someone has entered?

I am prompting the user for a total sales amount in dollars, such as 1200, or 900, etc. For every 100 dollars, I need to display a * character. So if the user enters 500, ***** will show on the screen. Does anyone know how I would do this using Visual Basic 2010? Thanks so much!