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*League Two100.0*Average seed
Colchester 0 MK Dons 2 +4.8
-0.4
Bury 2 Scunthorpe 1 -3.7
+0.1
Notts County 3 Colchester 1 +2.8
-0.4
Oldham 1 Yeovil 0 +1.4
-0.2
Bury 0 Oldham 1 +1.3
-0.1
Scunthorpe 1 Walsall 1 -0.7
+0.0
Brentford 3 Portsmouth 2 -0.2
Shrewsbury 0 Bournemouth 3 -0.1
+0.1
Stevenage 0 Yeovil 2 +0.1
Week of 4/20100.0*League Two100.0*Average seed
MK Dons 0 Scunthorpe 1 +7.0
-0.1
Colchester 0 Shrewsbury 0 +0.3
-0.2
Oldham 2 Crawley Town 1 +0.3
-0.2
Week of 4/27100.0*League Two100.0*Average seed
Scunthorpe 2 Swindon 1 +19.9
-0.2
Carlisle 0 Colchester 2 No
+0.4
Leyton Orient 1 Oldham 1 -0.0
Points
Chance Will Win Championship