How are these numbers calculated?

Big Games

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

Week of 8/14100.0*Chance wins title100.0*League One100.0*Conference100.0*Average seed
Notts County 0 Mansfield 2 +0.1
+0.3
-0.2
Week of 8/15100.0*Chance wins title100.0*League One100.0*Conference100.0*Average seed
Newport 2 Stevenage 2 No
-0.5
+1.3
-1.5
Barnet 0 Wycombe 2 -0.1
-1.2
+0.1
Carlisle 4 Cambridge 4 +0.1
Luton 2 Oxford Utd 2 +0.1
+0.3
+0.0
Dag & Red 1 Leyton Orient 3 -0.1
-1.4
+0.1
York 1 Hartlepool 2 -0.1
-1.1
+0.1
Hartlepool 1 Newport 0 No
+6.9
-0.9
Crawley 1 Wimbledon 2 +1.9
-0.1
Morecambe 1 Accrington 0 +1.5
-0.1
Accrington 1 Mansfield 0 +1.2
-0.2
Luton 0 Bristol Rovers 1 -0.1
+0.1
Dag & Red 1 Exeter 2 -6.8
+0.2
Yeovil 0 Bristol Rovers 1 +0.1
Leyton Orient 3 Stevenage 0 -1.0
+0.1
Wimbledon 1 Cambridge 2 +0.1
Oxford Utd 3 Notts County 1 +0.1
-0.1
Crawley 0 Portsmouth 0 +1.4
-0.1
Barnet 2 Northampton 0 +12.9
-0.6
York 1 Yeovil 0 +1.0
-0.1
Morecambe 0 Wycombe 1 +0.0
Week of 8/22100.0*Chance wins title100.0*League One100.0*Conference100.0*Average seed
Stevenage 2 Hartlepool 0 +24.6
-0.6
Yeovil 3 Luton 2 +13.0
-0.4
Newport 2 Leyton Orient 3 +10.7
-0.7
Wycombe 1 Dag & Red 1 +8.2
-0.2
Cambridge 0 Crawley 3 +0.1
-0.1
Carlisle 1 Wimbledon 1 +0.1
-0.0
Points
Chance Will Win Championship