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
Doncaster 2 Crystal Palace 0 -0.9
QPR 0 Plymouth 0 +0.0
Week of 5/3100.0*Average seed
Crystal Palace 0 Sheff United 0 -0.6
Sheff Wed 1 Cardiff 0 -0.2
Watford 3 Derby 1 -0.2
Ipswich 2 Coventry 1 +0.1
Wolves 1 Doncaster 0 +0.0
Points
Chance Will Win Championship