Hi Joe,
Can you clarify if this is correct
( Avg % Rx + Avg % TX ) x Total Bandwidth configured on interface/100 = Total Bandwidth Utilization
For eg: Avg % Rx=11
Avg % Tx=11
Interface= Gigaethernet 1/1
Bandwidth 465000
Bandwidth= 465000= 46.5 Mbps
Now Applying formula = (11+11) x 46.5/ 100 = 10.23 Mbps i.e actual interface utilization
Regards
Gautam