How are these numbers calculated?

Big Games

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

Week of 8/19100.0*Chance in playoffs100.0*Average seed
Lux 4 AlbinoRhinos 4 (ot)Out
Stiffs 2 BeardedClams 6 +0.5
+0.1
Week of 8/26None
Week of 9/3100.0*Chance in playoffs100.0*Average seed
AlbinoRhinos 7 BeardedClams 7 (ot)+0.5
PapaGenos 7 Stiffs 1 +0.1
Points
Chance Will Make Playoffs