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*Relegated100.0*Average seed
Darlington 2 Dag & Red 3 +18.5
-0.5
Notts County 1 Wycombe 0 No
+1.1
Mansfield 0 Rotherham 1 -10.3
+0.2
Shrewsbury 0 Chester 0 +0.8
-0.0
Chester 0 Stockport 0 +0.6
Morecambe 1 Lincoln City 2 +0.3
Wrexham 1 Accrington 3 +0.3
Grimsby 1 Peterborough 4 +0.3
Barnet 2 Stockport 1 +0.2
Brentford 0 Hereford 3 +0.2
Bury 1 Rochdale 1 +0.2
Macclesfield 1 Chesterfield 0 +0.2
-0.2
Week of 5/3100.0*Relegated100.0*Average seed
Dag & Red 2 Mansfield 0 -0.5
Chesterfield 1 Notts County 1 -0.1
Rochdale 1 Shrewsbury 1 -0.1
Chester 0 Macclesfield 0 -0.0
Points
Chance Will Win Championship