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
Victory 2 Evergrande 0 -18.2
-0.7
Marinos 2 Motors 1 -5.4
+0.1
Week of 4/22100.0*Chance in playoffs100.0*Average seed
Evergrande 2 Marinos 1 In
+0.8
Motors 0 Victory 0 +0.1
Points
Chance Will Make Playoffs