How are these numbers calculated?

Big Games

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

Week of 4/26100.0*Chance in playoffs100.0*Average seed
Whitlock 7 Anderson 5 -5.1
-0.5
Gurney 6 van Gerwen 6 +0.7
Smith 1 van Gerwen 7 +0.5
+0.1
Wright 1 Smith 7 -0.4
-0.2
van Barneveld 6 Cross 6 +0.3
+0.0
Week of 5/3100.0*Chance in playoffs100.0*Average seed
Anderson 3 van Barneveld 7 -7.8
-0.5
Gurney 6 Smith 6 +1.5
-0.0
Cross 2 van Gerwen 7 +0.3
+0.2
Week of 5/10100.0*Chance in playoffs100.0*Average seed
van Gerwen 5 Anderson 7 In
+0.5
Wright 6 Gurney 6 +7.2
+0.1
Smith 6 van Barneveld 6 +0.4
-0.1
Whitlock 6 Cross 6 +0.1
Games Above .500
Chance Will Make Playoffs