How are these numbers calculated?

Big Games

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

Week of 9/10100.0*Chance in playoffs100.0*Average seed
Reign 2 Spirit 0 +5.0
+0.6
Kansas 0 Stars 0 -2.1
+0.0
Thorns 3 Flash 2 +0.9
Pride 1 Sky Blue 2 -0.2
Dash 4 Breakers 1 -0.1
Week of 9/24100.0*Chance in playoffs100.0*Average seed
Breakers 0 Flash 4 Out
-0.1
Dash 2 Reign 3 +0.3
Sky Blue 1 Thorns 3 +0.3
Points
Chance Will Make Playoffs