How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Tuesday, 4/20100.0*Chance in playoffs100.0*Eliminated100.0*Average seed
Durrant 4 de Sousa 7 +3.9
-3.9
+0.4
Wright 4 Wade 7 -3.3
+3.3
Cross 4 Van den Bergh 7 +1.5
-1.5
+0.1
Aspinall 6 Clayton 6 -0.4
+0.4
-0.0
van Gerwen 6 Anderson 6 -0.3
+0.3
-0.0
Wednesday, 4/21100.0*Chance in playoffs100.0*Eliminated100.0*Average seed
van Gerwen 7 de Sousa 4 -2.5
+2.5
-1.2
Cross 5 Aspinall 7 In
No
-0.1
Wade 7 Clayton 2 -0.6
+0.6
+0.0
Anderson 5 Van den Bergh 7 +0.3
-0.3
+0.1
Wright 7 Durrant 1 -0.1
+0.1
-0.0
Thursday, 4/22100.0*Chance in playoffs100.0*Eliminated100.0*Average seed
Clayton 7 van Gerwen 3 -0.4
de Sousa 6 Wright 6 +0.3
Aspinall 7 Anderson 2 +0.2
Van den Bergh 6 Wade 6 -0.2
Games Above .500
Chance Will Make Playoffs