How are these numbers calculated?

Big Games

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

Week of 4/26100.0*Average seed
Morecambe 1 Lincoln City 2 +1.7
Grimsby 1 Peterborough 4 +0.2
Barnet 2 Stockport 1 -0.2
Brentford 0 Hereford 3 +0.1
Bury 1 Rochdale 1 +0.1
Week of 5/3100.0*Average seed
Lincoln City 2 Wrexham 4 -1.8
Rotherham 1 Barnet 0 +0.3
Accrington 0 Bury 2 -0.2
Stockport 1 Brentford 0 +0.2
Milton Keynes 1 Morecambe 1 +0.1
Hereford 2 Grimsby 0 +0.0
Points
Chance Will Win Championship