How are these numbers calculated?

Big Games

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

Week of 5/18100.0*Average seed
Heschel 3 Flatbush 5 -0.4
Flatbush 1 Frisch 5 +0.2
Haftr 2 Frisch 12 -0.0
Week of 5/28100.0*Average seed
TABC 1 SAR 5 +0.8
Frisch 7 MTA 0 +0.0
Week of 6/2100.0*Average seed
Heschel 1 Kushner 12 -1.8
Points
Chance Will Make Playoffs