I will confirm that these numbers are accurate. I've heard that bonus percentages improve when you reach Staff.

Google also has, interesting enough, High Compensation Plans (HCPs) for people it's trying to bring in from finance. On an HCP, you get faster promotions and usually you are on the management ladder, which is much easier to climb, especially past level 7+. So, if you come from Wall Street, you can be a Software Manager III or Director but write code full time.