Noob question +- as black

I’m using NCM to learn. I’m playing games as white and black against bots and using NCU to help me understand options.

So the +/- numbers returned on various moves. I’ve read the + means white is in a better position and - means black in in a better position. Is that true of NCM?

IE if I am playing as black I want to be evaluating the most negative moves?

Yes, that’s correct.