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*Relegated100.0*Average seed
Northampton 2 Hereford 1 +4.2
-0.1
Northampton 0 Milton Keynes 1 -3.2
+0.1
Cheltenham 1 Carlisle 1 -2.5
+0.1
Huddersfield 2 Brighton 2 +0.1
Week of 5/2100.0*Relegated100.0*Average seed
Crewe 0 Leicester 3 Yes
-0.3
Carlisle 2 Millwall 0 +6.3
-0.2
Brighton 1 Stockport 0 +6.3
-0.1
Points
Chance Will Win Championship