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*Relegated100.0*Average seed
Chesterfield 2 Rochdale 1 -1.6
+0.5
Exeter City 4 Walsall 2 -0.6
-0.2
Charlton 2 Wycombe 1 -0.1
+0.1
Week of 4/28100.0*Relegated100.0*Average seed
Yeovil 3 Chesterfield 2 Yes
-0.4
Hartlepool 2 Leyton Orient 1 -0.8
Wycombe 3 Notts County 4 -0.2
+0.2
Walsall 1 Huddersfield 1 -0.1
Carlisle 4 Exeter City 1 +0.1
Rochdale 1 MK Dons 2 +0.0
Week of 5/5100.0*Relegated100.0*Average seed
Chesterfield 2 Brentford 3 -0.3
Exeter City 2 Sheff United 2 +0.1
Sheff Wed 2 Wycombe 0 +0.1
Points
Chance Will Win Championship