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
Northampton 3 SouthernLehigh 1 In
+0.6
Week of 2/19100.0*Chance in playoffs100.0*Average seed
Nazareth 1 Northampton 6 +0.8
Emmaus 1 Parkland 8 -0.2
Points
Chance Will Make Playoffs