How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Libertadores100.0*Average seed
Corinthians 1 Grêmio 0 +22.5
+0.8
Internacional 2 Atlético-MG 1 -1.1
-0.0
Sport Recife 2 Fluminense 2 +0.8
+0.0
Santos 0 São Paulo 1 -0.1
-0.1
Week of 11/29100.0*Libertadores100.0*Average seed
Fluminense 5 Corinthians 2 -6.3
-0.4
Atlético-MG 1 Coritiba 2 +3.2
+0.0
Internacional 3 Palmeiras 1 -2.0
-0.2
Bahia 1 Grêmio 0 +1.5
If winner is:HomeEmpateAway
Week of 12/6100.0*Libertadores100.0*Average seed
Figueirense vs Internacional+0.3+0.0-0.3
Corinthians vs Criciúma+0.3+0.0-0.3

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
691-0-0NoYes6436No5,117,974
670-0-1NoYes3664No3,903,527
660-1-0NoYes100No5,118,819
Total:NoYes3367No14,140,320
Points
Chance Will Win Championship