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 0 Milton Keynes 1 -5.6
+0.1
Northampton 2 Hereford 1 +4.7
-0.1
Cheltenham 1 Carlisle 1 +4.5
-0.2
Huddersfield 2 Brighton 2 +1.3
Tranmere 1 Yeovil 1 +0.8
-0.0
Swindon 2 Bristol Rovers 1 +0.7
-0.1
Scunthorpe 3 Cheltenham 0 -0.4
Hartlepool 0 Leeds 1 -0.3
+0.1
Colchester 0 Peterborough 1 -0.2
Oldham 1 Southend 1 -0.1
Milton Keynes 0 Walsall 1 -0.1
Week of 5/2100.0*Relegated100.0*Average seed
Carlisle 2 Millwall 0 -50.3
+0.9
Brighton 1 Stockport 0 +8.0
-0.2
Leeds 3 Northampton 0 -6.2
+0.2
Walsall 1 Oldham 2 -0.3
Yeovil 0 Colchester 2 -0.3
Leyton Orient 1 Huddersfield 1 -0.2
Bristol Rovers 4 Hartlepool 1 +0.2
Crewe 0 Leicester 3 +0.2
Points
Chance Will Win Championship