bbwin_0.7 cpu %

Does anyone have any advice on how to gauge the cpu % on the bbwin client. After I upgraded the client my Dell 6850 (with either dual xeon or quad). Now the numbers on the side of the rrd chart has 0.0 - 1.0 - 2.0 and it says sql server is using 191.0 %.

How are you supposed to read this?