The way the charging is done is that the Expert (psychic) sets a per/minute price, and Liveperson takes a % cut of that, plus connection charges of their own (17c a min). So a two minute session at a price set by the psychic of $10/min, means the Liveperson site gets 34c for the connection fee, plus 37% of the $20 that the customer pays.
So to summarise, the customer pays $20 for a 2-minute reading (lol), the Psychic gets $12.26 of that, and Liveperson gets $7.74.
I hope that clears it up. There are quite a few unscrupulous "psychics" who throw random crap at clients telling them lies and getting paid more for doing this than most jobs are paid. Con-artist comes to mind.