How are these numbers calculated?

Big Games

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

Week of 2/8100.0*Chance in playoffs100.0*Average seed
Easton 1 Emmaus 9 +4.7
+0.2
Northampton 3 SouthernLehigh 1 +3.2
+0.1
Week of 2/19100.0*Chance in playoffs100.0*Average seed
Emmaus 1 Parkland 8 Out
-0.4
Points
Chance Will Make Playoffs