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
Fluminense 3 Juventude 2 +10.6
+0.8
Sport Recife 1 Cruzeiro 0 +8.6
+0.3
Parana 2 Santos 3 -8.2
-0.2
Flamengo 2 Atletico-PR 0 -5.2
-0.1
Internacional 2 Palmeiras 1 +4.1
+0.1
America-RN 0 Gremio 3 -0.1
-0.1
Sao Paulo 2 Botafogo 2 +0.1
+0.1
Week of 12/2100.0*Libertadores100.0*Average seed
Santos 2 Fluminense 4 +38.0
+1.2
Palmeiras 1 Atletico-MG 3 +17.7
+0.3
Cruzeiro 2 America-RN 0 -2.1
-0.2
Gremio 1 Corinthians 1 +1.6
+0.0
Points
Chance Will Win Championship