How are these numbers calculated?

Big Games

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

Week of 4/13100.0*Conference Nat’l100.0*Average seed
Northampton 0 York 2 +4.1
-0.2
Wycombe 2 Aldershot Town 1 -3.0
+0.1
Burton Albion 1 Plymouth Argyle 0 -0.8
+0.1
Dag & Red 0 Oxford United 1 -0.6
+0.1
AFC Wimbledon 2 Exeter City 2 -0.2
+0.0
Week of 4/20100.0*Conference Nat’l100.0*Average seed
Barnet 1 Wycombe 0 -28.6
+1.3
York 2 Southend 1 +6.2
-0.2
Morecambe 0 Torquay United 2 +5.2
-0.2
Aldershot Town 1 Dag & Red 0 +2.2
Bristol Rovers 0 Accrington 1 +1.1
-0.1
Gillingham 2 AFC Wimbledon 2 -0.6
+0.1
Plymouth Argyle 0 Rotherham 1 +0.1
Week of 4/27100.0*Conference Nat’l100.0*Average seed
Northampton 2 Barnet 0 +32.9
-1.7
AFC Wimbledon 2 Fleetwood Town 1 +17.0
-0.4
Rotherham 2 Aldershot Town 0 -6.9
+0.1
Dag & Red 0 York 1 -3.3
Rochdale 1 Plymouth Argyle 0 -0.9
+0.3
Torquay United 3 Bristol Rovers 3 +0.4
+0.1
Accrington 0 Oxford United 3 +0.2
Points
Chance Will Win Championship