How are these numbers calculated?

Big Games

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

Tuesday, 5/25100.0*Chance in playoffs100.0*Average seed
Clayton 5 de Sousa 8 +20.3
+0.8
Wright 8 Van den Bergh 5 +10.5
+0.2
Anderson 4 van Gerwen 8 -0.4
-0.1
Wade 7 Aspinall 7 +0.0
Wednesday, 5/26100.0*Chance in playoffs100.0*Average seed
de Sousa 6 van Gerwen 8 -1.2
-0.6
Clayton 5 Wright 8 In
+0.1
Wade 7 Van den Bergh 7 +0.4
Anderson 7 Aspinall 7 +0.1
Thursday, 5/27100.0*Chance in playoffs100.0*Average seed
Aspinall 3 de Sousa 8 +0.7
Van den Bergh 6 Clayton 8 -0.0
Games Above .500
Chance Will Make Playoffs