How are these numbers calculated?

Big Games

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

Week of 11/11100.0*Chance wins title100.0*Serie A100.0*Average seed
Atletico-GO 5 Tupi 3 No
Bragantino 1 Vasco da Gama 2 +0.3
+12.4
+0.5
Luverdense 2 Bahia 2 +0.1
+0.4
+0.1
Avai 3 Nautico 0 +0.8
-0.0
CRB 0 Paysandu 1 +2.6
+0.1
Sampaio Correa 1 Londrina 3 -1.0
Ceara 2 Vila Nova 3 +0.3
Week of 11/18100.0*Chance wins title100.0*Serie A100.0*Average seed
Criciuma 1 Vasco da Gama 0 -7.1
-0.5
Tupi 1 Nautico 4 -3.4
-0.1
Bahia 3 Bragantino 2 -2.0
-0.2
Londrina 0 Avai 1 +0.2
-0.2
Week of 11/25100.0*Chance wins title100.0*Serie A100.0*Average seed
Nautico 0 Oeste 2 Yes
+0.3
Vasco da Gama 2 Ceara 1 Yes
+0.8
Atletico-GO 2 Bahia 1 +0.4
+0.1
Avai 1 Brasil de Pelotas 1 -0.1
Points
Chance Will Win Championship