How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Serie B100.0*Average seed
Bahia 0 Palmeiras 2 +5.4
-1.0
Gremio 1 Ceara 3 +1.7
Cruzeiro 1 Atletico-PR 1 -1.4
+0.1
Sao Paulo 3 America-MG 1 -0.4
Corinthians 2 Atletico-MG 1 -0.3
+0.2
Atletico-GO 0 Flamengo 0 +0.0
Week of 11/27100.0*Serie B100.0*Average seed
Santos 1 Bahia 1 -4.3
-0.2
America-MG 2 Atletico-PR 1 -4.1
+0.1
Ceara 2 Cruzeiro 2 +0.7
+0.1
Atletico-MG 4 Botafogo 0 +0.4
-0.3
Palmeiras 1 Sao Paulo 0 -0.1
Gremio 2 Atletico-GO 2 -0.0
Week of 12/4100.0*Serie B100.0*Average seed
Bahia 2 Ceara 1 +0.6
Atletico-GO 5 America-MG 1 -0.2
Points
Chance Will Win Championship