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
Bury 0 Oldham 1 -18.0
+0.4
Oldham 1 Yeovil 0 -8.4
+0.4
Bury 2 Scunthorpe 1 -5.7
+0.1
Scunthorpe 1 Walsall 1 -3.5
+0.0
Brentford 3 Portsmouth 2 -1.3
+0.0
Tranmere 0 Hartlepool 1 +0.4
Colchester 0 MK Dons 2 -0.4
+0.1
Notts County 3 Colchester 1 -0.2
+0.0
Week of 4/20100.0*League Two100.0*Average seed
MK Dons 0 Scunthorpe 1 +3.1
Oldham 2 Crawley Town 1 No
+0.3
Colchester 0 Shrewsbury 0 +0.1
Shrewsbury 1 Oldham 0 -0.4
Week of 4/27100.0*League Two100.0*Average seed
Carlisle 0 Colchester 2 -0.5
Shrewsbury 3 Portsmouth 2 -0.0
Leyton Orient 1 Oldham 1 +0.0
Points
Chance Will Win Championship