How are these numbers calculated?

Big Games

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

Week of 4/16100.0*Chance wins title100.0*Promoted100.0*Average seed
Wigan Athletic 1 Cambridge United 2 -11.3
-2.2
-0.1
Burton Albion 2 Rotherham United 0 +9.5
+0.8
+0.1
MK Dons 2 Sheffield Wed 3 +3.4
+0.6
Ipswich Town 2 Wigan Athletic 2 -3.0
-0.0
Rotherham United 1 Ipswich Town 0 -1.8
-0.4
Oxford United 1 MK Dons 0 +1.7
+1.4
+0.0
Plymouth Argyle 0 Sunderland 0 +0.1
Week of 4/23100.0*Chance wins title100.0*Promoted100.0*Average seed
Portsmouth 3 Wigan Athletic 2 -17.3
-1.6
-0.2
Rotherham United 2 Oxford United 1 -4.7
-0.2
-0.0
Sunderland 1 Rotherham United 1 +3.3
+0.1
+0.0
Wigan Athletic 1 Plymouth Argyle 1 -2.3
+0.1
-0.0
MK Dons 2 Morecambe 0 -0.4
-0.2
Wycombe Wanderers 1 Sheffield Wed 0 +0.1
+0.1
Week of 4/30100.0*Chance wins title100.0*Promoted100.0*Average seed
Shrewsbury Town 0 Wigan Athletic 3 Yes
Yes
+0.3
Gillingham 0 Rotherham United 2 -20.6
-1.4
-0.2
Plymouth Argyle 0 MK Dons 5 -3.8
-3.4
-0.1
Points
Chance Will Win Championship