How are these numbers calculated?

Big Games

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

Week of 4/25100.0*Average seed
Cardiff 0 Ipswich 3 -0.3
Bristol City 1 Sheff Wed 1 -0.2
QPR 0 Plymouth 0 +0.1
Doncaster 2 Crystal Palace 0 +0.0
Week of 5/3100.0*Average seed
Preston 2 QPR 1 +0.3
Burnley 4 Bristol City 0 -0.2
Ipswich 2 Coventry 1 -0.0
Points
Chance Will Win Championship