2+3=4?

I finnished my last class for my Associates Degree last week. I checked my score online and was sad that it was 0.4 short of a B. So I double checked my scores and noticed that I was missing 5 points. I e-mailed the instructor and she told me that she was not finished with the scores and I would get my points.

I checked two days later and my points were there-20 of them. My grade went DOWN 0.2 points to make me 0.6 away from a B! I don't understand. I e-mailed the instructor again but have not gotten a reply. Hopefully, there was a misscalculation and it will go UP instead of DOWN.

More inportantly, I only needed a C to graduate! I should get the paperwork in about 6 weeks!