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*Chance wins title100.0*Championship100.0*Average seed
Crewe 1 Doncaster 2 No
-0.5
Sheff Utd 2 Swindon 0 No
-4.1
-0.6
Shrewsbury 0 Bournemouth 3 -0.1
-1.0
-0.1
Brentford 3 Portsmouth 2 -0.1
-0.4
-0.0
Stevenage 0 Yeovil 2 -0.5
-0.2
Swindon 4 Crewe 1 +2.1
+0.2
Tranmere 0 Hartlepool 1 +0.7
+0.1
Colchester 0 MK Dons 2 -0.6
Leyton Orient 2 MK Dons 0 +0.5
+0.0
Scunthorpe 1 Walsall 1 +0.4
+0.0
Oldham 1 Yeovil 0 +0.1
Week of 4/20100.0*Chance wins title100.0*Championship100.0*Average seed
Swindon 3 Stevenage 0 +1.5
+0.2
Coventry 0 Leyton Orient 1 -0.7
-0.1
MK Dons 0 Scunthorpe 1 +0.5
Walsall 1 Bury 1 +0.4
Crewe 1 Sheff Utd 0 +0.3
Portsmouth 3 Sheff Utd 0 +0.1
Yeovil 1 Crewe 0 -0.1
Week of 4/27100.0*Chance wins title100.0*Championship100.0*Average seed
Scunthorpe 2 Swindon 1 -0.7
Bury 3 Yeovil 2 +0.4
Sheff Utd 0 Preston 0 +0.1
Points
Chance Will Win Championship