How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Serie B100.0*Average seed
Avai 2 Palmeiras 1 -6.2
+0.7
Fluminense 2 Ponte Preta 0 -0.9
+0.1
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 -16.3
+0.9
Ponte Preta 2 Vitoria 3 +4.3
+0.0
Fluminense 1 Sport Recife 2 +2.7
-0.3
Coritiba 1 Sao Paulo 2 -0.7
Gremio 1 Atletico-GO 1 +0.0
If winner is:HomeEmpateAway
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+8.5-2.3-2.4
-0.3-0.1+0.2
Chapecoense vs Coritiba-3.2-3.1+6.9
+0.1+0.1-0.2
Vitoria vs Flamengo+6.6-3.3-3.2
-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-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
451-0-0NoNo364418219.9%11,776,991
430-0-1NoNo5446Yes11,505,772
420-1-0NoNo7228Yes24,283,797
Total:NoNo91117481480.2%47,566,560
Points
Chance Will Win Championship