How are these numbers calculated?

Big Games

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

Week of 9/23100.0*Chance in playoffs100.0*Average seed
Reign 0 Kansas 1 Out
-0.5
Dash 2 Stars 3 -5.8
-0.1
Pride 0 Thorns 0 +0.3
Sky Blue 1 Courage 1 +0.0
Week of 9/30100.0*Chance in playoffs100.0*Average seed
Spirit 2 Reign 3 +0.6
Breakers 3 Sky Blue 4 -0.4
Points
Chance Will Make Playoffs