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
Sport Recife 1 Cruzeiro 0 -27.5
-1.1
Flamengo 2 Atletico-PR 0 -8.4
-0.3
Internacional 2 Palmeiras 1 +6.5
+0.2
Parana 2 Santos 3 -4.5
-0.2
Fluminense 3 Juventude 2 -4.2
-0.2
America-RN 0 Gremio 3 -2.0
-0.1
Sao Paulo 2 Botafogo 2 +0.1
+0.0
Week of 12/2100.0*Libertadores100.0*Average seed
Cruzeiro 2 America-RN 0 +23.8
+0.9
Santos 2 Fluminense 4 No
-0.3
Palmeiras 1 Atletico-MG 3 +12.4
+0.3
Gremio 1 Corinthians 1 +1.3
-0.0
Points
Chance Will Win Championship