How are these numbers calculated?

Big Games

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

Week of 8/25100.0*Chance in playoffs100.0*Eliminated100.0*Average seed
Smith 3 Anderson 7 -14.9
+0.1
-0.6
Smith 7 Cross 3 +8.5
No
+0.4
Aspinall 5 Gurney 7 +2.8
Wright 7 de Zwaan [c] 1 -2.6
-0.1
Anderson 1 Price 7 +2.5
van Gerwen 7 Cross 2 -1.3
-0.0
-0.1
Aspinall 7 Price 4 -0.8
Wright 6 Durrant 6 -0.6
van Gerwen 3 Durrant 7 +0.2
Week of 8/27100.0*Chance in playoffs100.0*Eliminated100.0*Average seed
Smith 6 Aspinall 8 -17.6
-0.7
Aspinall 7 Smith 5 -16.5
-0.7
van Gerwen 8 Smith 5 -14.9
-0.7
Smith 8 Gurney 3 +8.7
+0.4
Gurney 8 Wright 6 +4.2
+0.1
van Gerwen 4 Price 8 +1.9
Wattimena [c] 0 Price 7 -1.7
-0.1
Durrant 7 Smith 7 +1.5
+0.2
Wright 5 Anderson 8 -1.3
-0.1
Durrant 8 Price 4 +1.2
+0.1
Wright 7 Gurney 4 -1.2
-0.0
Anderson 7 Durrant 7 -1.0
-0.0
Wright 8 van Gerwen 1 +0.9
-0.1
Gurney 6 Anderson 8 -0.7
Aspinall 6 Anderson 8 +0.3
Aspinall 6 van Gerwen 8 -0.2
Durrant 7 Cross 4 -0.2
-0.0
Wright 6 Price 8 +0.2
van Gerwen 4 Anderson 7 -0.2
Price 6 Aspinall 8 -0.2
Durrant 8 Gurney 3 +0.1
+0.0
Week of 9/4100.0*Chance in playoffs100.0*Eliminated100.0*Average seed
Smith 7 Price 7 -1.3
-0.2
Gurney 5 Aspinall 8 -0.9
Anderson 6 van Gerwen 8 -0.8
Durrant 6 Wright 8 -0.7
Games Above .500
Chance Will Make Playoffs