How are these numbers calculated?

Big Games

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

Week of 8/21100.0*Chance in playoffs100.0*Average seed
Sasaki 2 Karl 8 -0.1
-0.1
Sha 4.5 RK 5.5 +0.1
Week of 8/28100.0*Chance in playoffs100.0*Average seed
Shannon 4 Sha 6 -0.1
Week of 9/4100.0*Chance in playoffs100.0*Average seed
Sha 6.5 Sasaki 3.5 -0.2
Points
Chance Will Make Playoffs