Signal provider payment

 
I would like to know about the signal provider and their paymetn. 
I have accepted as a seller and I want to provide the service at $30 each month, But I would like to know how much is it going to cost me and how much % do i have to give to MTL5 platform form my payment. What is their cut ? If anyone know how does it works then can you explain it to me. Thank you. 
 

It is written in the rules here:

Rules of Using the Signals Service - Payment
Rules for copy trading in MetaTrader 4 and 5 - the Trading Signals service
Rules for copy trading in MetaTrader 4 and 5 - the Trading Signals service
  • www.mql5.com
Terms of Service Trading Signals: Signal Providers, how to create a signal subscription signals.