There is a difference between rotating with the Rotate tool and (for group and component only) with the Move tool (applied on their red grips).
The Rotate tool FAIK takes negative as the side "opposite"of the third click in relation to the base line (first towards second click). So normally you don’t need that at all if you click right.
It’s especially in Layout where I’m rotating an object which I have already rotated before.
I start rotating it and the Measurement box shows the angle. So, when I get near the angle I want, I type the value and it seems to do odd things, like rotate 180, or not at all. I think I’m rotating it 90 degrees and it will go 180 degrees and be upside down.
Just confuses me. I normally have to keep typing angles in until I get the right one, by process of elimination.