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
Wright 8 Van den Bergh 5 +0.3
-0.2
Wade 7 Aspinall 7 -0.3
+0.1
Clayton 5 de Sousa 8 -0.1
Anderson 4 van Gerwen 8 +0.1
Wednesday, 5/26100.0*Chance in playoffs100.0*Average seed
Clayton 5 Wright 8 -0.2
Anderson 7 Aspinall 7 -0.1
Wade 7 Van den Bergh 7 -0.1
Thursday, 5/27100.0*Chance in playoffs100.0*Average seed
Anderson 6 Wade 8 +0.7
Wright 6 van Gerwen 8 +0.2
Games Above .500
Chance Will Make Playoffs