How are these numbers calculated?

Big Games

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

Week of 4/6100.0*Serie A2100.0*Average seed
U. Barbarense 1 Sao Paulo 2 +8.4
-0.4
Paulista 2 Ituano 3 +5.2
-0.2
A. Sorocaba 3 Mirassol 2 +2.3
-0.1
A. Sorocaba 1 Oeste 0 +1.3
-0.0
Penapolense 3 Guarani 0 -0.6
+0.1
Corinthians 2 Sao Bernardo 0 -0.2
Mogi Mirim 2 Paulista 0 -0.1
Week of 4/13100.0*Serie A2100.0*Average seed
U. Barbarense 0 Santos 4 Yes
-0.4
Sao Paulo 0 XV Piracicaba 1 +0.1
Ponte Preta 2 Mirassol 0 +0.1
Palmeiras 4 Guarani 1 +0.0
Penapolense 1 Sao Caetano 1 -0.0
Week of 4/21100.0*Serie A2100.0*Average seed
Guarani 1 U. Barbarense 3 +1.1
Sao Caetano 0 Paulista 2 +0.3
Mirassol 3 Linense 0 -0.1
Points
Chance Will Make Playoffs