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 -29.3
-0.8
Easton 1 Emmaus 9 -0.1
-0.0
Week of 2/19100.0*Chance in playoffs100.0*Average seed
Emmaus 1 Parkland 8 -20.7
-0.1
Easton 0 Parkland 11 Out
-0.0
Emmaus 1 SouthernLehigh 11 +1.9
Points
Chance Will Make Playoffs