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
Tranmere 1 Yeovil 1 -1.9
+0.3
Northampton 0 Milton Keynes 1 -1.4
+0.2
Swindon 2 Bristol Rovers 1 +0.7
-0.3
Northampton 2 Hereford 1 +0.6
-0.1
Cheltenham 1 Carlisle 1 +0.3
+0.0
Huddersfield 2 Brighton 2 +0.2
+0.0
Hartlepool 0 Leeds 1 -0.2
+0.2
Week of 5/2100.0*Relegated100.0*Average seed
Yeovil 0 Colchester 2 -0.8
Brighton 1 Stockport 0 -0.3
Bristol Rovers 4 Hartlepool 1 +0.2
Leeds 3 Northampton 0 +0.1
Peterborough 2 Swindon 2 +0.1
Points
Chance Will Win Championship