How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Serie A100.0*Average seed
Nautico 1 CRB 1 -11.8
-0.6
Botafogo 0 Santa Cruz 3 -8.7
-0.2
Vitoria 1 Ceara 0 -2.5
-0.1
Bragantino 3 Sampaio Correa 0 +1.5
-0.0
Paysandu 3 Luverdense 2 -0.5
-0.1
Boa Esporte 3 Bahia 0 +0.4
+0.1
Week of 11/20100.0*Serie A100.0*Average seed
Nautico 1 Bahia 0 +2.5
+0.8
Mogi Mirim 0 Santa Cruz 3 -2.2
Vitoria 3 Luverdense 0 -0.5
CRB 2 Sampaio Correa 1 +0.2
Paysandu 1 Criciuma 0 -0.2
Parana 0 Bragantino 2 -0.2
Week of 11/27100.0*Serie A100.0*Average seed
Bragantino 0 Nautico 2 +1.2
Oeste 0 Paysandu 0 -0.1
Points
Chance Will Win Championship