How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Serie B100.0*Average seed
Sport Recife 1 Bahia 0 +0.3
-0.2
Atletico-MG 3 Coritiba 0 -0.1
Atletico-GO 1 Chapecoense 1 +0.0
Week of 11/25100.0*Serie B100.0*Average seed
Avai 1 Atletico-PR 0 -13.3
+0.8
Fluminense 1 Sport Recife 2 +2.6
-0.3
Ponte Preta 2 Vitoria 3 +2.2
+0.0
Coritiba 1 Sao Paulo 2 -0.9
Gremio 1 Atletico-GO 1 +0.0
If winner is:HomeDrawAway
Week of 12/3100.0*Serie B100.0*Average seed
Santos vs AvaiYesYes-60.2
-0.8+0.0+1.6
Sport Recife vs Corinthians+8.5-2.4-2.3
-0.3-0.1+0.2
Chapecoense vs Coritiba-3.2-3.2+6.9
+0.1+0.1-0.2
Vitoria vs Flamengo+6.5-3.2-3.2
-0.2+0.1+0.1
Vasco da Gama vs Ponte Preta+0.1+0.1-0.4

What If

Chances based on how well the Avai finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleLibertadores1234567891011121314151617181920Serie BCount
451-0-0NoNo364418219.9%11,933,855
430-1-0NoNo5446Yes11,665,276
420-0-1NoNo7228Yes24,610,629
Total:NoNo91117481480.2%48,209,760
Points
Chance Will Win Championship