doubt help marauder Unyielding

I'm playing the character, Level 58 Juggernaut, and I have the 2nd Class Rise.
It happens that Unyielding describes that I will have 5% for each load, however the values described in my build do not reach the description since I have 13,323.3 and with 7 loads I only have an increase of 14,479.2.
Faced with this, my game was impaired in addition to spending time and time studying the build and not reaching the values and predictions described in the information.
I ask for help.