How are these numbers calculated?

Big Games

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

Week of 10/19100.0*Chance in playoffs100.0*Average seed
Southampton 6 Mt. Sinai 35 In
+0.0
Week of 10/26100.0*Chance in playoffs100.0*Average seed
Mt. Sinai 35 Hampton Bays 0 +0.1
Week of 11/2None
Games Above .500
Chance Will Make Playoffs