How are these numbers calculated?

Big Games

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

Week of 4/3100.0*Chance in playoffs100.0*Average seed
Lanus 6 Olimpia 0 +24.9
+0.7
Emelec 3 Flamengo 2 In
+0.2
Week of 4/10100.0*Chance in playoffs100.0*Average seed
Flamengo 3 Lanus 0 -0.1
Olimpia 2 Emelec 3 +0.1
Week of 4/17None
Points
Chance Will Make Playoffs