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
Barrow 36 All Golds 6 -7.6
+7.6
-0.3
Hunslet 56 Coventry 24 -1.0
+1.0
-0.1
Oxford 20 North Wales 52 -0.9
+0.9
-0.1
Whitehaven 28 Keighley 22 +0.5
-0.5
+0.0
Doncaster 34 Oxford 16 -0.2
+0.2
+0.0
Workington 46 London 16 +0.1
-0.1
+0.1
Week of 7/8100.0*Super 8100.0*League 1 Shield100.0*Average seed
Toronto 62 All Golds 10 -3.3
+3.3
-0.1
London 30 Hunslet 16 +2.0
-2.0
-0.1
North Wales 12 Whitehaven 12 -0.9
+0.9
-0.1
Workington 30 Keighley 30 +0.2
-0.2
+0.0
Barrow 80 Oxford 10 +0.0
Week of 7/15100.0*Super 8100.0*League 1 Shield100.0*Average seed
All Golds 4 Doncaster 42 No
Yes
-0.8
Coventry 13 North Wales 36 No
Yes
-0.1
Keighley 92 Oxford 6 No
Yes
-0.1
Hunslet 26 Newcastle 25 -1.6
+1.6
-0.3
London 36 South Wales 16 -0.1
Games Above .500
Chance Will Win Championship