I agree with the others. We can’t give you a helpful answer since we are not sure what you are looking to learn here but I will try to answer it the best way I can. I know there are charts out there that might tell you on the average how much money your business can generate, but I think they can be irrelevant for the following reasons:
-The revenue totally depends on your ability to generate it. It also depends on your ability to be able to run a successful business, your networking and marketing skills and how well you can spend the money you will be making. Also, do you have the financial means to help you overcome that “dead” period where you will be spending more money from what you will be making?
-How different are you from your competition? Can you offer something completely different from what others in your market area do? If yes then you will be successful sooner rather than later.
-Your overhead cost (for obvious reasons).
The bottom line here is that you alone have control over the statistics of your business. I hope this helps.