How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Serie B100.0*Average seed
Atletico-MG 1 Coritiba 0 +21.2
-1.0
Sao Paulo 4 Figueirense 2 -5.4
+0.1
Parana 0 Flamengo 1 +2.3
-0.1
Ponte Preta 2 Palmeiras 6 -0.9
+0.1
Atletico-PR 2 Sao Caetano 2 -0.9
+0.0
Juventude 2 Goias 1 +0.9
-0.1
Vasco da Gama 4 Paysandu 0 -0.8
Fortaleza 5 Fluminense 1 +0.1
-0.1
Week of 11/27100.0*Serie B100.0*Average seed
Sao Caetano 1 Coritiba 1 +13.5
-0.4
Brasiliense 0 Figueirense 2 +10.7
-0.2
Atletico-MG 0 Vasco da Gama 0 -2.5
+0.1
Corinthians 3 Ponte Preta 1 -1.5
+0.1
Atletico-PR 3 Paysandu 2 +0.1
Week of 12/4100.0*Serie B100.0*Average seed
Coritiba 1 Internacional 0 -37.7
+0.7
Ponte Preta 3 Brasiliense 1 +8.3
-0.1
Cruzeiro 1 Sao Caetano 3 +8.2
-0.1
Juventude 1 Atletico-MG 3 -0.4
Points
Chance Will Win Championship