How are these numbers calculated?

Big Games

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

Week of 4/21100.0*Promoted100.0*Average seed
Notts County 2 Bury 4 +1.8
+0.2
Sheff Wed 2 Carlisle 1 -1.8
-0.3
Stevenage 2 Brentford 1 -0.8
-0.0
Week of 4/28100.0*Promoted100.0*Average seed
Carlisle 4 Exeter City 1 +1.2
+0.4
Sheff United 2 Stevenage 2 +0.6
+0.0
Wycombe 3 Notts County 4 -0.5
-0.2
Brentford 1 Sheff Wed 2 +0.2
Week of 5/5100.0*Promoted100.0*Average seed
Notts County 4 Colchester 1 No
-0.2
Oldham 2 Carlisle 1 No
-0.3
Stevenage 3 Bury 0 No
-0.2
Points
Chance Will Win Championship