How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Chance in playoffs100.0*Average seed
Celtic 0 Barcelona 2 In
+0.1
Borussia M'gla… 1 Manchester City 1 +0.3
+0.1
Week of 12/8None
Points
Chance Will Make Playoffs