How are these numbers calculated?

Big Games

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

Week of 11/9100.0*Serie C100.0*Average seed
Figueirense 2 Paysandu 3 -31.3
+0.6
Guarani 0 Paysandu 2 -17.5
+0.5
Criciuma 3 CRB 3 -0.6
Boa Esporte 0 Brasil de Pelotas 1 +0.2
Oeste 0 Londrina 0 +0.2
Juventude 0 Ponte Preta 1 -0.1
+0.1
Sampaio Correa 2 Sao Bento 1 -0.1
Week of 11/16100.0*Serie C100.0*Average seed
Londrina 1 CRB 2 +18.9
-0.3
Vila Nova 2 Criciuma 2 +5.3
-0.1
Oeste 1 Goias 3 -1.1
+0.1
Atletico-GO 1 Sao Bento 0 -0.2
Week of 11/23100.0*Serie C100.0*Average seed
Paysandu 2 Atletico-GO 5 Yes
-0.6
Criciuma 2 Sampaio Correa 0 +6.0
-0.2
Boa Esporte 0 Oeste 0 -2.0
+0.1
CRB 2 Figueirense 1 +1.0
-0.1
Sao Bento 2 Vila Nova 2 +0.2
-0.1
Points
Chance Will Win Championship