I'm trying to understand the exact calculation for Network Performance percentage, in more detail than what is displayed when you hover over the header. Our normal performance for the sites I'm measuring is below 85% even when performance is good. I also will notice consecutive reporting periods swig from 20% to 90%, and the period that is showing the higher performance actually has a higher loss rate than the period with the worse performance. I have many reporting periods with a loss rate of .2 (point 2) percent and a RTT of 5ms and the Network Performance is 75%. I would like to use network performance as an indicator of system health, but as it is currently working for us, I can not trust it.