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
Bournemouth 1 Colchester 1 -0.2
Notts County 2 Bury 4 -0.2
Huddersfield 1 Scunthorpe 0 +0.1
Oldham 1 Preston 1 +0.1
Tranmere 1 Hartlepool 1 +0.1
Leyton Orient 2 Yeovil 2 +0.0
Week of 4/28100.0*Average seed
Hartlepool 2 Leyton Orient 1 -0.2
Scunthorpe 1 Bournemouth 1 -0.2
Preston 2 Charlton 2 +0.1
Yeovil 3 Chesterfield 2 -0.1
Bury 0 Oldham 0 +0.1
Week of 5/5100.0*Average seed
Bournemouth 1 Preston 0 +1.6
Stevenage 3 Bury 0 +0.3
Charlton 3 Hartlepool 2 +0.3
Huddersfield 2 Yeovil 0 +0.2
Tranmere 1 Scunthorpe 1 -0.1
Points
Chance Will Win Championship