How are these numbers calculated?

Big Games

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

Week of 1/15100.0*Serie C100.0*Average seed
Sampaio Correa 2 Parana 1 +16.2
-0.6
Parana 0 Cuiaba 2 +13.3
-0.5
CRB 5 Figueirense 1 -4.5
+0.1
Figueirense 3 Brasil de Pelotas 0 +4.4
-0.2
Ponte Preta 2 Nautico 0 -3.3
+0.1
Nautico 4 Oeste 1 +3.2
-0.1
Guarani 1 Vitoria 2 +3.0
-0.1
Botafogo-SP 1 CSA 3 -1.0
+0.1
America-MG 1 Botafogo-SP 1 -0.9
+0.0
Vitoria 0 Chapecoense 0 -0.8
+0.0
Oeste 0 Confianca 1 +0.6
Juventude 1 Cruzeiro 0 -0.1
Week of 1/22100.0*Serie C100.0*Average seed
Oeste 1 Parana 0 Yes
-0.4
Cruzeiro 0 Nautico 0 +1.8
Juventude 2 Figueirense 1 -1.2
+0.2
Vitoria 1 Botafogo-SP 0 +0.2
Week of 1/29100.0*Serie C100.0*Average seed
Parana 0 Cruzeiro 0 -0.3
Figueirense 2 Ponte Preta 7 +0.2
Botafogo-SP 0 Operario-PR 1 +0.2
Points
Chance Will Win Championship