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*Promoted100.0*Average seed
Birmingham 1 Preston 2 +3.4
+0.5
Cardiff 0 Ipswich 3 +0.4
Sheff United 1 Swansea City 0 +0.2
+0.1
Southampton 2 Burnley 2 +0.1
Week of 5/3100.0*Promoted100.0*Average seed
Preston 2 QPR 1 +6.5
+0.4
Burnley 4 Bristol City 0 -4.2
-0.3
Sheff Wed 1 Cardiff 0 +3.8
+0.3
Swansea City 0 Blackpool 1 +0.1
Points
Chance Will Win Championship