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
-0.1
Week of 8/15100.0*Chance wins title100.0*League One100.0*Conference100.0*Average seed
York 1 Hartlepool 2 No
-0.6
+11.1
-1.6
Barnet 0 Wycombe 2 -0.1
-1.4
+0.1
Dag & Red 1 Leyton Orient 3 -0.1
-1.6
+0.1
Carlisle 4 Cambridge 4 +0.2
Luton 2 Oxford Utd 2 +0.1
+0.3
Crawley 1 Wimbledon 2 +2.2
-0.1
Yeovil 0 Bristol Rovers 1 +1.1
-0.1
York 1 Yeovil 0 -31.3
+3.7
Morecambe 1 Accrington 0 +1.8
-0.1
Luton 0 Bristol Rovers 1 +0.1
Wimbledon 1 Cambridge 2 +0.1
Accrington 1 Mansfield 0 +0.8
-0.3
Oxford Utd 3 Notts County 1 -0.1
Morecambe 0 Wycombe 1 +0.1
Hartlepool 1 Newport 0 -0.9
+0.1
Leyton Orient 3 Stevenage 0 -0.6
+0.1
Barnet 2 Northampton 0 +8.5
-0.5
Dag & Red 1 Exeter 2 -5.5
+0.2
Newport 2 Stevenage 2 +1.5
+0.1
Crawley 0 Portsmouth 0 +0.9
-0.0
Week of 8/22100.0*Chance wins title100.0*League One100.0*Conference100.0*Average seed
Bristol Rovers 3 Barnet 1 No
+0.1
Exeter 0 York 0 No
No
+1.0
Notts County 1 Accrington 1 -0.1
Stevenage 2 Hartlepool 0 -0.6
Cambridge 0 Crawley 3 -0.6
Newport 2 Leyton Orient 3 No
+0.0
Wycombe 1 Dag & Red 1 No
Carlisle 1 Wimbledon 1 -0.2
Portsmouth 3 Morecambe 3 -0.3
Yeovil 3 Luton 2 +0.1
Points
Chance Will Win Championship