How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 3/9100.0*Chance wins title100.0*Average seed
CAR 5 BEL 2 No
-0.4
NOT 2 SHE 4 -0.3
+0.0
COV 6 NOT 1 +0.2
+0.2
Week of 3/13100.0*Chance wins title100.0*Average seed
SHE 4 NOT 3 +0.3
NOT 5 COV 0 -0.2
BEL 5 CAR 2 +0.2
CAR 4 BEL 3 (ot)-0.1
SHE 6 COV 3 +0.0
Points
Chance Will Win Championship