How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Libertadores100.0*Average seed
Atletico-PR 1 Corinthians 0 +14.1
+0.5
Internacional 1 Atletico-MG 2 -12.2
-0.2
Vitoria 1 Atletico-PR 2 +10.4
+0.7
Atletico-MG 1 Bahia 0 -5.0
-0.0
Sao Paulo 1 Cruzeiro 0 +2.1
+0.1
Cruzeiro 3 Vitoria 0 -1.5
-0.2
America-MG 2 Santos 1 +1.0
+0.1
Santos 1 Botafogo 1 +0.8
+0.1
Botafogo 1 Internacional 0 -0.3
-0.1
Week of 11/25100.0*Libertadores100.0*Average seed
Atletico-PR 2 Ceara 2 -15.0
-0.2
Cruzeiro 0 Flamengo 2 +2.1
+0.1
Week of 12/1100.0*Libertadores100.0*Average seed
Flamengo 1 Atletico-PR 2 +42.6
+0.6
Atletico-MG 1 Botafogo 0 No
-0.1
Points
Chance Will Win Championship