How are these numbers calculated?

Big Games

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

Week of 7/1100.0*Super 8100.0*League 1 Shield100.0*Average seed
Oxford 20 North Wales 52 +10.2
-10.2
+1.1
Hunslet 56 Coventry 24 -1.0
+1.0
-0.1
Whitehaven 28 Keighley 22 +0.6
-0.6
+0.0
Barrow 36 All Golds 6 +0.6
-0.6
+0.1
Doncaster 34 Oxford 16 -0.3
+0.3
Doncaster 10 Newcastle 20 -0.2
+0.2
Workington 46 London 16 +0.1
Week of 7/8100.0*Super 8100.0*League 1 Shield100.0*Average seed
North Wales 12 Whitehaven 12 +39.9
-39.9
+0.9
London 30 Hunslet 16 +6.0
-6.0
+0.1
Workington 30 Keighley 30 -1.8
+1.8
+0.0
Toronto 62 All Golds 10 +0.5
-0.5
+0.0
Week of 7/15100.0*Super 8100.0*League 1 Shield100.0*Average seed
Keighley 92 Oxford 6 -19.1
+19.1
-0.2
Coventry 13 North Wales 36 +10.2
-10.2
+0.5
York 34 Workington 0 +2.5
-2.5
+0.0
Hunslet 26 Newcastle 25 -0.6
+0.6
-0.2
All Golds 4 Doncaster 42 +0.1
London 36 South Wales 16 -0.0
Games Above .500
Chance Will Win Championship