How are these numbers calculated?

Big Games

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

Week of 3/6100.0*Chance wins title100.0*Average seed
DUN 1 BRA 2 +7.2
+0.5
MAN 2 FIF 8 -7.1
+0.0
BRA 8 MAN 3 +6.4
+0.3
EDI 2 DUN 10 -0.1
Week of 3/13100.0*Chance wins title100.0*Average seed
BRA 8 EDI 1 +25.1
+0.3
MAN 3 BRA 6 +12.6
+0.2
DUN 13 EDI 2 -0.0
Week of 3/20100.0*Chance wins title100.0*Average seed
EDI 3 BRA 6 Yes
+0.5
Points
Chance Will Win Championship