How are these numbers calculated?

Big Games

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

Week of 4/24100.0*Promoted100.0*Average seed
Morecambe 1 Dag & Red 0 +4.5
+1.1
Cheltenham 1 Aldershot 2 -1.1
-0.2
Lincoln City 1 Bury 0 +0.6
+0.1
Port Vale 2 Notts County 1 -0.4
-0.2
Chesterfield 1 Bradford 1 +0.4
+0.1
Northampton 2 Shrewsbury 0 -0.3
-0.1
Barnet 0 Rotherham 1 -0.3
-0.1
Week of 5/8100.0*Promoted100.0*Average seed
Morecambe 1 Aldershot 0 +1.2
+1.1
Darlington 0 Dag & Red 2 -1.0
-0.3
Chesterfield 2 Bournemouth 1 -0.9
-0.1
Port Vale 1 Shrewsbury 1 -0.7
-0.1
Northampton 1 Bury 1 +0.6
+0.0
Hereford 3 Rotherham 0 +0.3
Points
Chance Will Win Championship