Average means the price is calculated on the average usage of bandwidth
from the total amount of measurements they've made (usually they take
5 minute interval samples of your traffic)
95 percentile means at the end of the month they order all samples (again
usually 5 minute interval samples) order them from High to Low take of the
highest 5% of samples and calculate your price based on the highest
remaining sample after deducting the previous highest 5%
so if the highest remaining sample is for example 4Mbps than you'll get
charged for 4Mbps
This comes down to roughly 2 hours per day of peak traffic you can safely
burn without getting burned by overcharges. If you have high peaks longer
than that 95% percentile could be bad for you.
Of course this is a rough estimate based on similar traffic patterns over the
each day for the entire month...if you have a few days with longer spikes
but also have a few days with less spikes that could compensate again
for the days you burn more.......you can easily calculate this yourself with
a few lines of code who do the math.
I'm sure you can find such little script by googling a bit.....if you can't and
really want this let me know and I'll whip a quicky up for you......for free
that is of course.....
