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 +1.5
+2.2
+0.1
Week of 8/15100.0*Chance wins title100.0*League One100.0*Conference100.0*Average seed
York 1 Hartlepool 2 +10.4
+17.4
No
+1.6
Hartlepool 1 Newport 0 +5.8
+12.5
+0.8
Barnet 2 Northampton 0 +4.1
+8.6
+0.4
Crawley 0 Portsmouth 0 +2.9
+3.3
+0.2
Morecambe 0 Wycombe 1 -2.6
-2.7
-0.1
Barnet 0 Wycombe 2 -2.1
-2.1
-0.1
Dag & Red 1 Leyton Orient 3 -1.9
-2.0
-0.1
Leyton Orient 3 Stevenage 0 -1.5
-2.2
-0.1
Carlisle 4 Cambridge 4 +1.5
+1.1
+0.1
Plymouth 1 Portsmouth 2 -1.5
-1.3
-0.1
Northampton 3 Exeter 0 -0.7
-0.4
-0.0
Luton 2 Oxford Utd 2 +0.2
+0.9
+0.1
Wimbledon 1 Cambridge 2 -0.1
-1.6
-0.1
Crawley 1 Wimbledon 2 +0.1
+0.3
+0.0
Morecambe 1 Accrington 0 +0.1
+0.3
+0.0
Accrington 1 Mansfield 0 +0.1
+1.5
+0.2
Luton 0 Bristol Rovers 1 -0.6
-0.1
Dag & Red 1 Exeter 2 -0.4
-0.1
Oxford Utd 3 Notts County 1 +0.2
+0.0
Yeovil 0 Bristol Rovers 1 +0.1
Week of 8/22100.0*Chance wins title100.0*League One100.0*Conference100.0*Average seed
Stevenage 2 Hartlepool 0 -13.9
-53.4
-2.7
Wycombe 1 Dag & Red 1 +13.2
-0.2
+0.4
Newport 2 Leyton Orient 3 -6.6
-0.5
-0.2
Portsmouth 3 Morecambe 3 +5.5
+0.2
Cambridge 0 Crawley 3 +4.1
+0.2
Northampton 0 Plymouth 2 -0.1
Exeter 0 York 0 +0.1
Bristol Rovers 3 Barnet 1 -0.1
Points
Chance Will Win Championship