How are these numbers calculated?

Big Games

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

Week of 2/25100.0*Chance in playoffs100.0*Average seed
M. Jackson 2 K. Jackson 13 -4.6
-0.6
Jaun 2 Schoolman 8 -1.4
-0.1
Scott 13 Allen 3 +1.0
Week of 3/11100.0*Chance in playoffs100.0*Average seed
Scott 8 M. Jackson 9 +0.8
K. Jackson 2 Allen 6 -0.3
Games Above .500
Chance Will Make Playoffs