Track Revenue and Commission

This app is almost perfect for what I do as far as base pay and having a way to enter small sales for the service we provide. It would be nice if there was a performance tracking option. My vision is having the the ability to create a list of products we sell where the user could create a database that includes product name, gross revenue, and commission then the user can generate a report that will show strictly sales and commission performance. At any given period or a know period interval (year, month,creek, day)