Perhaps that you picked the combat CG instead of the trade one by mistake, delivered a few good who were unregistered, one random bounty who get you above 50% (first day it was extremely easy, due to how hard it was to find a wanted ship), and now tou see the CG you signed in closed with your participation being close to the lowest (hence the 75-100% tier) ?
In this case, sign up for the good one and deliver some food, you've still the time to reach 75%+ easily.
In this case, sign up for the good one and deliver some food, you've still the time to reach 75%+ easily.