How are these numbers calculated?

Big Games

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

Week of 3/18100.0*Chance in playoffs100.0*Average seed
Zasowski 1 Franklin 9 +32.9
+0.5
Jaun 7 Howard 6 (so)+23.8
+0.2
Zwiefel 2 Hamilton 8 +0.1
Week of 4/1100.0*Chance in playoffs100.0*Average seed
Franklin 5 Jaun 4 -18.5
-0.3
Hamilton 2 Zasowski 8 -2.5
Howard 9 Zwiefel 13 +0.7
Points
Chance Will Make Playoffs