How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Chance in playoffs100.0*Average seed
Grondin 85.36 Billieve It 108.58 -24.8
-2.2
pure skillz 96.22 B3rT 119.4 +11.8
+0.7
Gus Legit Team 60.5 Rocco 97.24 -1.2
-0.1
9ers Champs 74.7 Nacho Vidal 148.16 +0.8
+0.1
BrunoB 69.02 Jay Team 56.64 +0.6
Kuske 90.16 Arrow Team 78.34 -0.2
+0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
pure skillz 109.66 Grondin 86.82 Out
-2.9
B3rT 102.36 Billieve It 64.66 +22.4
+1.3
BrunoB 81.74 Le Chat 122.54 +2.6
+0.1
Jay Team 96.32 Sly49ers 75.24 -2.6
-0.1
Arrow Team 67.62 9ers Champs 117.16 -2.6
+0.1
Games Above .500
Chance Will Make Playoffs