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
van Gerwen 6 Anderson 6 +0.4
-0.4
+0.0
Wright 4 Wade 7 -0.2
+0.2
+0.1
Cross 4 Van den Bergh 7 +0.2
-0.2
-0.1
Aspinall 6 Clayton 6 +0.0
Durrant 4 de Sousa 7 -0.0
Wednesday, 4/21100.0*Chance in playoffs100.0*Eliminated100.0*Average seed
Cross 5 Aspinall 7 In
No
-0.1
van Gerwen 7 de Sousa 4 In
No
+1.0
Wade 7 Clayton 2 -0.1
+0.1
+0.1
Thursday, 4/22100.0*Chance in playoffs100.0*Eliminated100.0*Average seed
Clayton 7 van Gerwen 3 -0.7
Aspinall 7 Anderson 2 -0.2
Van den Bergh 6 Wade 6 +0.1
Games Above .500
Chance Will Make Playoffs