Hit is a bit of a tricky stat due to how it interacts with weapon skill. Give the section about hit in the guide for the stat threshold feature a read: Custom Stat Threshold Guide
Short version: if you are going for 0% chance for your yellow/special attacks to miss, you should enter 9% as your desired threshold. If you enter 7%, you’re saying that you are OK with a 2% chance to miss with your yellow attacks. You already have 6% hit from gear, which as an Orc will get you to 0% chance to miss with yellow attacks, so you are already above the threshold that you have entered.
Due to how hit interacts with weapon skill, we know that it’s a bit ambiguous what value to enter in for the stat threshold. If you give that guide a read, you can see how and why we decided to do it this way. We think that for most people it will be the easiest to remember and use.