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*Average seed
Plymouth 3 Blackpool 0 -0.2
Barnsley 3 Charlton 0 +0.1
Norwich 3 QPR 0 +0.1
Sheff United 2 Bristol City 1 -0.1
Week of 5/4100.0*Average seed
Cardiff 3 Barnsley 0 +0.4
Crystal Palace 5 Burnley 0 +0.2
Charlton 4 Coventry 1 -0.2
Points
Chance Will Win Championship