How are these numbers calculated?

Big Games

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

Week of 4/26100.0*Chance in playoffs100.0*Average seed
Deportivo Cuenca 1 Pachuca 1 -3.3
Sporting Cristal 0 Boca Juniors 3 +0.8
Week of 5/3100.0*Chance in playoffs100.0*Average seed
Pachuca 2 Sporting Cristal 0 In
Boca Juniors 3 Deportivo Cuenca 0 -0.1
Week of 5/10None
Chance Will Make Playoffs