How are these numbers calculated?

Big Games

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

Week of 4/15100.0*Chance in playoffs100.0*Average seed
Al-Shabab 1 Esteghlal 1 In
-0.1
Al-Rayyan 2 Al-Jazira 3 -1.0
-0.2
Week of 4/22100.0*Chance in playoffs100.0*Average seed
Al-Jazira 1 Al-Shabab 2 +0.6
Points
Chance Will Make Playoffs