How are these numbers calculated?

Big Games

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

Week of 4/26100.0*Relegated100.0*Average seed
Gillingham 1 Swindon 1 +4.5
-0.1
Oldham 2 Cheltenham 1 -0.7
Bournemouth 1 Crewe 0 +0.5
-0.2
Millwall 3 Carlisle 0 +0.2
Week of 5/3100.0*Relegated100.0*Average seed
Cheltenham 2 Doncaster 1 Yes
Leeds 2 Gillingham 1 Yes
-0.0
Carlisle 1 Bournemouth 1 -0.2
Points
Chance Will Win Championship