How are these numbers calculated?

Big Games

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

Week of 4/25100.0*Average seed
Hartlepool 0 Leeds 1 -0.2
Millwall 2 Leyton Orient 1 +0.2
Milton Keynes 0 Walsall 1 +0.2
Northampton 0 Milton Keynes 1 -0.1
Week of 5/2100.0*Average seed
Carlisle 2 Millwall 0 -0.5
Leeds 3 Northampton 0 -0.2
Hereford 0 Milton Keynes 1 -0.1
Points
Chance Will Win Championship