How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Chance in playoffs100.0*Average seed
VICK 80 ROSE 92 +16.0
+0.6
MORA 34 NY 72 -5.2
-0.1
KING 77 BOS 80 +2.0
+0.1
PERS 63 CHICO 52 +1.1
MUFF 62 KEIT 79 -1.1
-0.1
FD 74 CAT5 48 -0.2
-0.0
Week of 11/29100.0*Chance in playoffs100.0*Average seed
FD 90 ROSE 137 +18.6
+0.6
KING 127 NY 93 +16.6
+0.2
MORA 57 CHICO 74 -2.0
-0.1
PERS 66 KEIT 62 +1.3
MUFF 62 CAT5 91 +0.2
Week of 12/6100.0*Chance in playoffs100.0*Average seed
ROSE 73 MUFF 100 -26.0
-0.8
NY 81 VICK 77 -11.0
-0.1
KEIT 84 MORA 73 -0.2
-0.1
CHICO 90 KING 103 +0.6
Games Above .500
Chance Will Make Playoffs