As I see the Pay Pal deal. They do not take a cut, but the sender has to pay a fee to send. I guess that's why Tapas wait to send until you have the value of $25
EDIT: There is a fee for receiving other valuta than original sender.
But the thing is. I requested 38.64 and I received 38.64. So no cut.
And the $27.79 isn't the remaining value, BC that's the "Available" tap, and it shows $10.79.
And I guess the many zero "Ad revenue" is bc it shows the daily earnings, and those days, there was no earnings.