How are these numbers calculated?

Big Games

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

Week of 4/30100.0*Average seed
QPR 1 C & K Basildon 4 +0.2
Lewes 0 Coventry Utd 1 +0.1
Week of 5/7100.0*Average seed
C & K Basildon 0 Lewes 2 -0.3
Week of 5/14100.0*Average seed
C & K Basildon 4 Charlton 3 +0.6
Points
Chance Will Win Championship