I don't follow. Whatever frequency the CPU is currently running at is a lower bound on the maximum frequency it could be running at, so it shouldn't exceed 100%?
But the thermals of the system means it can, for short periods of time, run much faster than long periods of time. I don't think a constantly changing 100%, that changes with temperature, is very useful. I would be more interested in whatever the sustainable 100% is, for normal room temperature.