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 -6.8
-1.3
Port Vale 2 Notts County 1 -1.1
-0.2
Cheltenham 1 Aldershot 2 -1.1
-0.2
Lincoln City 1 Bury 0 +0.7
+0.2
Northampton 2 Shrewsbury 0 -0.5
-0.1
Chesterfield 1 Bradford 1 +0.3
+0.0
Barnet 0 Rotherham 1 -0.1
-0.1
Week of 5/8100.0*Promoted100.0*Average seed
Darlington 0 Dag & Red 2 +12.0
+1.2
Northampton 1 Bury 1 +4.0
+0.4
Port Vale 1 Shrewsbury 1 +2.2
+0.3
Chesterfield 2 Bournemouth 1 -0.6
-0.2
Morecambe 1 Aldershot 0 -0.2
-0.1
Points
Chance Will Win Championship