If you ask you will should get the breakdown.Have any of your teams given out a detailed list of where all the money goes?.....My DD has been on four different teams, never once got a itemized list of where the money goes, mind you, I never asked for one, 2 of the teams it seemed it was well spent, the other 2 teams seemed like our funds were not well spent.......
You can somewhat estimate what the expenditures will total.
Most expenses come from tournament fees, uniforms and the highest variable is usually the cost to rent indoor practice facilities if you're in an area with a cold winter.
I do know a few people who started travel teams because they were convinced that someone was getting rich and they wanted to provide a low cost alternative, only to learn that costs add up quickly.