How are these numbers calculated?

Big Games

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

Tuesday, 12/8100.0*Chance in playoffs100.0*Average seed
Kleibrink 7 McCarville 4 +19.4
+0.8
Webster 7 Jones 8 +3.0
+0.1
Lawton 10 Holland 4 -1.0
Scott 7 Bernard 9 +0.1
Wednesday, 12/9100.0*Chance in playoffs100.0*Average seed
Lawton 5 Kleibrink 6 +11.7
+0.4
Holland 4 McCarville 3 +6.6
+0.1
Bernard 8 Kleibrink 5 -4.2
-0.3
Scott 5 McCarville 9 -3.1
-0.1
Webster 5 Holland 6 +1.8
+0.1
Webster 11 Scott 3 -1.8
-0.1
Jones 4 Lawton 6 -0.6
Bernard 8 Jones 5 +0.5
Thursday, 12/10None
Games Above .500
Chance Will Make Playoffs