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
Swindon 2 Bristol Rovers 1 -3.4
+1.0
Northampton 2 Hereford 1 +0.8
-0.1
Northampton 0 Milton Keynes 1 -0.7
+0.2
Cheltenham 1 Carlisle 1 +0.3
+0.0
Huddersfield 2 Brighton 2 +0.3
+0.0
Hartlepool 0 Leeds 1 -0.2
+0.2
Tranmere 1 Yeovil 1 +0.2
-0.1
Colchester 0 Peterborough 1 +0.1
Scunthorpe 3 Cheltenham 0 +0.1
Milton Keynes 0 Walsall 1 +0.1
Week of 5/2100.0*Relegated100.0*Average seed
Yeovil 0 Colchester 2 +0.3
Bristol Rovers 4 Hartlepool 1 +0.1
Leeds 3 Northampton 0 +0.1
Peterborough 2 Swindon 2 +0.1
Leyton Orient 1 Huddersfield 1 -0.1
Points
Chance Will Win Championship