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
Gray 3 Wright 7 Out
-0.2
Jaun 2 Schoolman 8 +0.1
Week of 3/11100.0*Chance in playoffs100.0*Average seed
Gray 7 Jaun 6 +0.5
Games Above .500
Chance Will Make Playoffs