How are these numbers calculated?

Big Games

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

Week of 11/14100.0*Serie C100.0*Average seed
America-RN 2 Icasa 0 -12.6
+0.4
Vila Nova 0 Oeste 1 +5.0
-0.1
Oeste 2 Nautico 0 +4.5
-0.1
Bragantino 2 Santa Cruz 1 +4.3
-0.1
Icasa 1 Parana 2 -3.1
+0.2
Ponte Preta 2 America-RN 2 -3.0
+0.1
Atletico-GO 1 Bragantino 0 -2.4
+0.1
ABC 1 Ceara 0 +2.1
-0.1
Week of 11/21100.0*Serie C100.0*Average seed
America-RN 1 Nautico 0 -22.6
+0.5
Bragantino 1 Parana 1 -10.7
+0.1
Vila Nova 3 ABC 5 +0.3
Week of 11/29100.0*Serie C100.0*Average seed
ABC 0 Bragantino 2 +48.3
-0.5
Parana 4 America-RN 1 +19.4
-0.3
Oeste 1 Joinville 0 +0.3
-0.1
Points
Chance Will Win Championship