How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Serie B100.0*Average seed
Palmeiras 0 Atletico-MG 2 +3.0
-0.1
Avai 3 Atletico-GO 0 +2.9
-0.1
Goias 1 Santos 4 -0.3
+0.1
Vitoria 1 Corinthians 1 -0.3
Week of 11/28100.0*Serie B100.0*Average seed
Guarani 0 Gremio 3 Yes
-0.3
Avai 3 Santos 2 +3.8
-0.1
Flamengo 1 Cruzeiro 2 -1.2
Atletico-GO 1 Sao Paulo 1 -1.0
Atletico-MG 3 Goias 1 +0.7
Internacional 1 Vitoria 1 -0.4
-0.0
Week of 12/5None
Points
Chance Will Win Championship