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
Coventry 1 Wolves 1 -2.4
-0.4
Norwich 3 QPR 0 +0.8
-0.2
Barnsley 3 Charlton 0 +0.7
-0.2
Leicester 1 Sheff Wed 3 +0.1
Plymouth 3 Blackpool 0 +0.1
West Brom 1 Southampton 1 -0.0
Week of 5/4100.0*Relegated100.0*Average seed
Southampton 3 Sheff United 2 +4.6
-0.3
Stoke City 0 Leicester 0 No
+0.1
Charlton 4 Coventry 1 +2.7
-1.0
Sheff Wed 4 Norwich 1 +1.0
-0.2
Cardiff 3 Barnsley 0 +0.1
+0.0
Blackpool 1 Watford 1 +0.0
Points
Chance Will Win Championship