How are these numbers calculated?

Big Games

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

Week of 4/21100.0*Average seed
Notts County 2 Bury 4 -0.2
Tranmere 1 Hartlepool 1 -0.1
Bournemouth 1 Colchester 1 +0.1
Huddersfield 1 Scunthorpe 0 +0.1
Oldham 1 Preston 1 +0.0
Leyton Orient 2 Yeovil 2 +0.0
Week of 4/28100.0*Average seed
Colchester 4 Tranmere 2 -1.0
Hartlepool 2 Leyton Orient 1 -0.1
Scunthorpe 1 Bournemouth 1 +0.1
Bury 0 Oldham 0 +0.1
Preston 2 Charlton 2 +0.0
Week of 5/5100.0*Average seed
Stevenage 3 Bury 0 +0.2
Charlton 3 Hartlepool 2 +0.2
Tranmere 1 Scunthorpe 1 -0.2
Bournemouth 1 Preston 0 -0.1
Huddersfield 2 Yeovil 0 +0.1
Points
Chance Will Win Championship