how much are the royalties for hairspray?

they are based on auditiorium size and ticket prices,number of performances and how much of an orchestra you are going to have. You can only find our by writing them and applying for them

While it's being performed on Broadway and in London's West End, it's highly unlikely that anyone would get permission to perform it anywhere.

And the royalties would be huge at present - they get less over the years.