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 No
MAN 2 FIF 8 No
EDI 2 DUN 10 +0.1
BRA 8 MAN 3 +0.0
Week of 3/13None
Week of 3/20None
Chance Will Win Championship