Progress Help

LivisMommy10

I have been on MFP for quite a while, though I just consistantly started back up in early December, after a weight gain from my last activity. I had entered in my new (higher) weight when I started back up, but now when logging my progress for weight, it is basing pounds lost off of my prior ending weight and not my higher weight logged when I started in Dec. Is there any way to adjust what weight is used to measure progress?