My "Attitude" is getting worse the more I become invested?

The other day, it was at 96%. This morning, it was at 88%. Now, a few hours later, it's at 80%. What's going on?

I've started a few communities and like it here. I try to be nice and upbeat. My posts have been received well, not seeing downvotes...

Edit: I'm marking this solved. I understand it now. Thank you all for being so helpful!

Edit Edit: After days of upvoting, I'm back at 96%. I juked the stats!