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
Nordiques 5 ScreaminSeagulls 1 -34.7
-0.4
Local1156 8 BaystateBulldogs 2 +0.0
Week of 8/18100.0*Chance in playoffs100.0*Average seed
ScreaminSeagulls 3 Icemen 5 Out
-0.0
Week of 8/25None
Points
Chance Will Make Playoffs