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 +0.9
Barnsley 3 Charlton 0 +0.2
Sheff United 2 Bristol City 1 -0.2
Burnley 3 Cardiff 3 +0.2
Norwich 3 QPR 0 +0.1
Coventry 1 Wolves 1 +0.0
Week of 5/4100.0*Average seed
Wolves 1 Plymouth 0 -0.7
Ipswich 1 Hull 0 -0.2
Southampton 3 Sheff United 2 +0.1
Crystal Palace 5 Burnley 0 +0.1
Points
Chance Will Win Championship