How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
El Nino' 2 Joes Real BBQ 6 -0.1
Blackout/Redbri 5 Sport Boys 5 In
-0.1
Week of 12/1None
Points
Chance Will Make Playoffs