How are these numbers calculated?

Big Games

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

Week of 3/21100.0*Chance in playoffs
Sao Bernardo 0 Palmeiras 1 +0.1
Mogi Mirim 1 Portuguesa 1 +0.1
Corinthians 2 Portuguesa 0 In
Week of 3/28None
Week of 4/4None
Points
Chance Will Make Playoffs