How are these numbers calculated?

Big Games

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

Week of 8/17100.0*Chance in playoffs100.0*Average seed
MilfordFire 5 OrangeCrush 2 +20.6
+0.2
Chargers 0 OldSchool 5 Out
-0.1
Week of 8/25None
Week of 9/2None
Points
Chance Will Make Playoffs