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*Chance in playoffs100.0*Average seed
Haftr 2 Frisch 12 +0.1
+0.1
North Shore 4 Haftr 10 -0.0
Week of 5/28None
Week of 6/2100.0*Chance in playoffs100.0*Average seed
Ramaz 4 Haftr 7 -0.6
Points
Chance Will Make Playoffs