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
North Shore 4 Haftr 10 +20.5
+0.3
North Shore 0 MTA 13 +0.1
Haftr 2 Frisch 12 -0.1
-0.1
Week of 5/28100.0*Chance in playoffs100.0*Average seed
TABC 1 SAR 5 -45.7
-0.5
Week of 6/2100.0*Chance in playoffs100.0*Average seed
Ramaz 4 Haftr 7 In
+1.0
MTA 6 Haftr 4 -0.2
Points
Chance Will Make Playoffs