How are these numbers calculated?

Big Games

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

Week of 8/11100.0*Chance in playoffs100.0*Average seed
Renegades 3 Blazers 6 In
+0.3
BoondockSaints 0 GoldenSeals 1 -0.3
ProTransmission 5 Blazers 5 -0.2
Week of 8/18None
Week of 8/25None
Points
Chance Will Make Playoffs