I have read that the licencing deals vary considerably, but generally the licence is millions of dollars and then the royalty is icing on that cake.
Ths pdf shows how ARM cuts it up:
http://www.arm.com/annualreport10/download-centre/PDF/ARM%20AR%20overview.pdf
Where the share price goes is anyone's guess. It depends on so many things it makes my head hurt, sufffice to say it's a big number compared to today's price.