How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 4/13100.0*Championship100.0*Average seed
Swindon 4 Crewe 1 -0.5
-0.0
Leyton Orient 2 MK Dons 0 +0.3
+1.0
Colchester 0 MK Dons 2 -0.1
-0.2
Sheff Utd 2 Swindon 0 +0.1
Tranmere 0 Hartlepool 1 +0.1
+0.2
Stevenage 0 Yeovil 2 -0.1
Scunthorpe 1 Walsall 1 +0.0
Crewe 1 Doncaster 2 +0.1
Week of 4/20100.0*Championship100.0*Average seed
Coventry 0 Leyton Orient 1 +0.9
+1.4
Swindon 3 Stevenage 0 No
MK Dons 0 Scunthorpe 1 +0.1
+0.3
Walsall 1 Bury 1 +0.2
Preston 1 Tranmere 0 +0.2
Oldham 2 Crawley Town 1 +0.2
Week of 4/27100.0*Championship100.0*Average seed
Crewe 2 Walsall 0 +0.1
Leyton Orient 1 Oldham 1 -0.1
Stevenage 0 MK Dons 2 -0.1
Points
Chance Will Win Championship