This will help you in several ways. First, it is easy to look down the list of affiliates and think of new ways of working on marketing them. Maybe you will want to put two or three of them together and market them all on one page. Then tell your customers that if they join all three you will throw in a fourth package that you have resell rights for. Second, you can easily either click on a link or cut and paste an address into your web browser to see how you are doing. And you have your username and password right there to cut and paste as well. Percentages in personal training can be absolutely invaluable. However, they need to be incorporated correctly in order to get the benefit out of them. One thing to think about, are percentages necessary for your clients?
When presenting your business plan to an angel investor you must understand that they will be very interested in your spreadsheets and proformas, but you must also realize that it is typically an entrepreneurial optimistic approach, which causes problems with proformas. Therefore, you should have dueling spreadsheets; that is to say the spreadsheets, which take your best guess and double the time, double the expenses to compete with your optimistic approach. You should be able to present both of these to your Angel Investor; who chances are is a retired business person with a little bit of financial savvy.