How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Average seed
Internacional 1 Grêmio 0 +0.1
Atlético-MG 2 Goiás 2 -0.0
Week of 11/28100.0*Average seed
Grêmio 2 Atlético-MG 1 -0.1
If winner is:HomeEmpateAway
Week of 12/6100.0*Average seed
Joinville vs Grêmio+0.2+0.2-0.4
Atlético-MG vs Chapecoense+0.2-0.1-0.1

What If

Chances based on how well the Atlético-MG finish out the regular season.   Explain

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
691-0-0NoYes100No5,360,214
670-0-1NoYes6238No3,423,475
660-1-0NoYes6238No5,356,631
Total:NoYes7624No14,140,320
Points
Chance Will Win Championship