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*Average seed
Grêmio 3 América-MG 0 +0.2
Santa Cruz 3 Atlético-MG 3 -0.1
Week of 11/26100.0*Average seed
Santa Cruz 5 Grêmio 1 +0.3
América-MG 2 Sport Recife 2 +0.1
If winner is:HomeEmpateAway
Week of 12/4100.0*Average seed
São Paulo vs Santa Cruz-0.1+0.0+0.0
Santos vs América-MG+0.0+0.0-0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:ChanceChance will finish season at seed
TPW-L-Ewins titleLibertadores1234567891011121314151617181920Serie BCount
32-34NoNo100Yes9,579,229*
310-1-0NoNo9010Yes5,847,491
Total:NoNo964Yes15,426,720

* Row combines multiple less frequent records.

Points
Chance Will Win Championship