How are these numbers calculated?

Big Games

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

Week of 11/15100.0*Série A100.0*Average seed
Icasa 2 Paysandu 1 -2.6
-0.1
Guaratinguetá 0 Ceará 1 -1.5
-0.1
Week of 11/22100.0*Série A100.0*Average seed
Joinville 2 América-MG 1 +1.1
Palmeiras 4 Ceará 1 +0.2
ABC 1 Avaí 0 +0.2
Guaratinguetá 3 Paraná 4 -0.1
Figueirense 2 ASA 0 -0.1
Week of 11/29100.0*Série A100.0*Average seed
Ceará 0 Joinville 3 +1.3
Paraná 2 Icasa 0 -0.4
Avaí 1 Boa Esporte 0 -0.1
América-MG 0 ABC 0 -0.0
Points  (Full Screen)
Chance Will Win Championship  (Full Screen)