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
Santos 4 Coritiba 0 +2.7
-1.1
Botafogo 3 Sao Paulo 2 +1.6
-0.1
Sport Recife 0 Fluminense 3 +1.2
-0.1
Santo Andre 4 Avai 2 +0.2
Vitoria 2 Barueri 1 +0.1
-0.1
Corinthians 2 Nautico 3 +0.1
+0.1
Atletico-PR 1 Cruzeiro 1 +0.1
+0.0
Week of 11/29100.0*Serie B100.0*Average seed
Cruzeiro 4 Coritiba 1 +15.4
-0.8
Fluminense 4 Vitoria 0 +4.9
-0.1
Atletico-PR 2 Botafogo 0 -4.0
-0.0
Santo Andre 5 Nautico 3 +0.3
Gremio 4 Barueri 2 +0.1
Week of 12/5100.0*Serie B100.0*Average seed
Botafogo 2 Palmeiras 1 +33.6
-0.4
Coritiba 1 Fluminense 1 -5.2
-0.4
Internacional 4 Santo Andre 1 -4.1
+0.1
Barueri 0 Atletico-PR 0 -0.1
Vitoria 2 Goias 2 -0.1
Points
Chance Will Win Championship