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
Bury 1 Rochdale 1 -0.3
Barnet 2 Stockport 1 -0.2
Grimsby 1 Peterborough 4 +0.2
Morecambe 1 Lincoln City 2 -0.1
Brentford 0 Hereford 3 +0.1
Week of 5/3100.0*Average seed
Accrington 0 Bury 2 +1.2
Milton Keynes 1 Morecambe 1 -0.2
Lincoln City 2 Wrexham 4 +0.2
Stockport 1 Brentford 0 +0.1
Hereford 2 Grimsby 0 +0.1
Points
Chance Will Win Championship