"A new CalPERS projection shows employer rates for the largest group of state workers increasing 27 percent over the next six years -- but the focus is on the risk of how much things can change. As the giant pension fund begins to take a bigger bite of state and local government budgets, employers will get more information about rates and a kind of mixed message. The goal is make rates more predictable for employers, avoiding shocks and allowing time to adjust budgets, while also encouraging employers to think about risks that could change the rates."