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*Average seed
KING 77 BOS 80 +0.3
MORA 34 NY 72 +0.2
Week of 11/29100.0*Average seed
VICK 99 BOS 68 -0.3
MUFF 62 CAT5 91 -0.2
MORA 57 CHICO 74 +0.1
Week of 12/6100.0*Average seed
BOS 69 FD 98 -0.1
KEIT 84 MORA 73 +0.1
Games Above .500
Chance Will Make Playoffs