How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Serie A100.0*Average seed
Paysandu 3 Luverdense 2 No
-0.4
Week of 11/20100.0*Serie A100.0*Average seed
Vitoria 3 Luverdense 0 -0.2
CRB 2 Sampaio Correa 1 -0.2
Week of 11/27100.0*Serie A100.0*Average seed
Criciuma 2 CRB 1 +0.3
Luverdense 2 Mogi Mirim 0 +0.2
Points
Chance Will Win Championship