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*Libertadores100.0*Average seed
Atletico-GO 1 Chapecoense 1 -8.3
-0.5
Flamengo 3 Corinthians 0 -3.6
-0.1
Sport Recife 1 Bahia 0 +2.5
+0.1
Atletico-PR 3 Vasco da Gama 1 +2.2
-0.1
Atletico-MG 3 Coritiba 0 -1.8
-0.1
Sao Paulo 0 Botafogo 0 +1.2
+0.1
Week of 11/25100.0*Libertadores100.0*Average seed
Bahia 0 Chapecoense 1 +21.2
+1.7
Cruzeiro 0 Vasco da Gama 1 -3.2
-0.2
Palmeiras 2 Botafogo 0 +1.9
+0.1
Corinthians 2 Atletico-MG 2 +1.8
+0.1
Avai 1 Atletico-PR 0 +1.4
+0.2
Flamengo 1 Santos 2 +0.8
Coritiba 1 Sao Paulo 2 -0.7
-0.2
Fluminense 1 Sport Recife 2 +0.1
+0.1
If winner is:HomeDrawAway
Week of 12/3100.0*Libertadores100.0*Average seed
Chapecoense vs Coritiba+58.1-33.9No
+2.1-0.8-1.6
Botafogo vs Cruzeiro-4.0+1.5+3.0
-0.3+0.1+0.2
Vitoria vs Flamengo+2.0+2.1-3.4
+0.1+0.1-0.2
Vasco da Gama vs Ponte Preta-3.4+2.1+2.1
-0.2+0.1+0.1
Sao Paulo vs Bahia-0.6+1.9-0.6
-0.1+0.5-0.2
Atletico-MG vs Gremio-0.6+0.4+0.4
-0.3-0.1+0.3
Atletico-PR vs Palmeiras-0.2+0.1+0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-D-Lwins titleLibertadores1234567891011121314151617181920Serie BCount
541-0-0No94.5%2444275No6,334,471
520-1-0No2.53225224No4,042,339
510-0-1NoNo6314618No6,336,310
Total:No36.4%917111024237No16,713,120
Points
Chance Will Win Championship