How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Libertadores100.0*Average seed
Fortaleza 2 Santos 1 -2.3
Internacional 2 Fortaleza 2 -1.4
-0.2
Sao Paulo 1 Vasco da Gama 0 +0.9
Botafogo 1 Corinthians 0 +0.9
+0.2
Goias 4 Bahia 3 +0.5
Atletico-MG 0 Athletico-PR 1 +0.3
-0.1
Ceara 1 Sao Paulo 1 +0.0
Palmeiras 1 Gremio 2 -0.1
Week of 12/1100.0*Libertadores100.0*Average seed
Sao Paulo 2 Internacional 1 -5.8
-0.5
Fluminense 0 Fortaleza 0 +4.7
+0.1
Palmeiras 5 Goias 1 Yes
+0.0
Goias 1 Fortaleza 2 +3.3
+0.0
Atletico-MG 2 Corinthians 1 +1.8
+0.2
Ceara 0 Corinthians 1 -1.8
-0.2
Gremio 3 Sao Paulo 0 +0.1
+0.1
Week of 12/8100.0*Libertadores100.0*Average seed
Internacional 2 Atletico-MG 1 +0.3
Corinthians 1 Fluminense 2 +0.2
Points
Chance Will Win Championship