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*Serie C100.0*Average seed
Boa Esporte 4 Santa Cruz 2 +5.2
-0.1
Guarani 2 CRB 1 +2.8
-0.0
Paysandu 2 Brasil de Pelotas 3 +1.0
-0.1
Figueirense 1 America-MG 2 -0.3
+0.1
Goias 0 Ceara 0 +0.3
Nautico 1 Londrina 2 -0.1
Week of 11/17100.0*Serie C100.0*Average seed
Guarani 0 Luverdense 0 Yes
-0.4
Juventude 0 Figueirense 0 -0.2
+0.0
Week of 11/24None
Points
Chance Will Win Championship