How are these numbers calculated?

Big Games

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

Week of 11/27100.0*Chance in playoffs100.0*Average seed
Ann 107.92 Buf 100.38 -18.0
-0.7
Nin 85.69 jos 91.67 +11.5
+0.1
Dra 98.38 Sam 98.07 -1.9
-0.1
Bri 79.52 Luc 85.4 +0.3
Week of 12/4100.0*Chance in playoffs100.0*Average seed
Won 161.26 Nin 67.35 +17.3
+0.2
Buf 109.74 rem 83.8 +17.3
+0.8
Ann 84.95 Luc 105.8 +2.8
Bri 32.71 Sam 125.51 +0.1
Games Above .500
Chance Will Make Playoffs