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
Northampton 2 Shrewsbury 0 +3.7
+1.4
Cheltenham 1 Aldershot 2 -0.5
-0.1
Lincoln City 1 Bury 0 +0.5
+0.1
Port Vale 2 Notts County 1 -0.4
-0.2
Barnet 0 Rotherham 1 -0.2
Morecambe 1 Dag & Red 0 +0.1
-0.1
Chesterfield 1 Bradford 1 +0.1
+0.0
Week of 5/8100.0*Promoted100.0*Average seed
Chesterfield 2 Bournemouth 1 No
-0.2
Darlington 0 Dag & Red 2 No
-0.1
Northampton 1 Bury 1 No
-0.7
Port Vale 1 Shrewsbury 1 +0.8
+0.0
Points
Chance Will Win Championship