Of course I agree that publishers add value. I am saying just that proportions of how much each party gets, have to be changed for e-books. App developer get 7

Of course I agree that publishers add value. I am saying just that proportions of how much each party gets, have to be changed for e-books. App developer get 70%. Writer probably 10%, publisher probably 20%. And my question is if publisher work is still worth that much, actually more than writers work.