How are these numbers calculated?

Big Games

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

Week of 10/16100.0*Chance in playoffs100.0*Average seed
Dash 0 Thorns 1 -18.9
-0.8
Courage 0 Gotham 3 +6.4
+0.0
Stars 2 KansasC 1 -4.8
-0.2
Racing 3 Pride 1 +1.9
+0.0
Reign 0 Spirit 2 -0.5
-0.2
KansasC 1 Gotham 1 -0.5
+0.0
Week of 10/28100.0*Chance in playoffs100.0*Average seed
Pride 0 Stars 1 -0.1
Week of 10/30100.0*Chance in playoffs100.0*Average seed
Spirit 1 Dash 0 Out
-0.8
Thorns 0 Courage 0 -4.7
-0.0
Gotham 1 Racing 1 -0.1
Points
Chance Will Make Playoffs