I find it ironic that is ok for someone to ask us how much money we make, yet in the job world if you ask that question, you are invading someones privacy.
I believe when they ask "how much money do you make" they either want some kind of guarantee such as a job paycheck where they will be successful without any effort or they are looking for an excuse not to join your team. If you tell them you make $10,000 a month they might shy away. On the other hand, if you tell them you only make $10 a month, they will judge the whole business on this.
I find that sometimes "true stories" of validation sometimes help. Everyone has a story. Tell them a story of someone in your business who started at the bottom and now is a leader in your company.
You don't need to flash income statements in their face. You simply tell them how leaders in your company all started out at the bottom and have risen to top leadership levels in the company.
This is also why 3 why calls with "successful" upline leaders are important. You want someone on your side to help you.
The truth is, if they are looking at it only from the money view point and not the possibility of helping other people, then do you really want them on your team? You may get a small commission if they join, but then you will spend the rest of the time trying to drag them across the finish line. Network marketing is not a job where you have to micromanage and babysit everyone. As the great Jim Rohn
once said "work with those who deserve it, not those who need it".