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
Grimsby 1 Peterborough 4 -0.6
Morecambe 1 Lincoln City 2 -0.2
Barnet 2 Stockport 1 -0.2
Bury 1 Rochdale 1 +0.0
Week of 5/3100.0*Average seed
Hereford 2 Grimsby 0 -0.1
Lincoln City 2 Wrexham 4 +0.1
Accrington 0 Bury 2 -0.1
Points
Chance Will Win Championship