How are these numbers calculated?

Big Games

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

Week of 8/6100.0*Chance in playoffs100.0*Relegated
OSS 0 Collingwood 8 Out
+0.1
Orillia 2 OSS 2 Yes
Week of 8/13None
Week of 8/20None
Points
Chance Will Make Playoffs