Difference between 'bandwidth percent' and 'bandwidth remaining percent'

What is the difference between bandwidth percent and bandwidth remaining percent (ardenpackeer.com)

By default, 25% of the total reservable interface bandwidth is reserved for routing protocols and important layer 2 traffic. The max-reservable-bandwidth command is used to change the amount of bandwidth reserved for this traffic.
The bandwidth percent and priority percent commands makes reservations from the total reservable interface bandwidth
The bandwidth remaining percent command makes reservations from the available bandwidth (whats left over of the total reservable bandwidth after the other reservations are made).

Downloads:
Dynamips/Dynagen .net configuration file