How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Libertadores100.0*Average seed
Corinthians 1 Gremio 0 +22.5
+0.8
Internacional 2 Atletico-MG 1 -1.0
-0.0
Sport Recife 2 Fluminense 2 +1.0
+0.0
Santos 0 Sao Paulo 1 -0.1
-0.1
Week of 11/29100.0*Libertadores100.0*Average seed
Fluminense 5 Corinthians 2 -6.9
-0.4
Atletico-MG 1 Coritiba 2 +3.4
+0.0
Internacional 3 Palmeiras 1 -2.1
-0.2
Bahia 1 Gremio 0 +1.8
Week of 12/6100.0*Libertadores100.0*Average seed
Figueirense 1 Internacional 2 -0.3
Corinthians 2 Criciuma 1 +0.3
Points
Chance Will Win Championship