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
Hunslet 56 Coventry 24 +7.5
-7.5
+0.4
Oxford 20 North Wales 52 -1.7
+1.7
-0.1
Barrow 36 All Golds 6 +1.7
-1.7
+0.1
Whitehaven 28 Keighley 22 +1.6
-1.6
+0.0
Workington 46 London 16 -0.9
+0.9
Doncaster 10 Newcastle 20 -0.7
+0.7
-0.1
Doncaster 34 Oxford 16 -0.3
+0.3
-0.0
Week of 7/8100.0*Super 8100.0*League 1 Shield100.0*Average seed
London 30 Hunslet 16 -24.8
+24.8
-1.0
North Wales 12 Whitehaven 12 -10.4
+10.4
-0.3
Workington 30 Keighley 30 -8.3
+8.3
-0.1
Toronto 62 All Golds 10 +0.7
-0.7
+0.0
Week of 7/15100.0*Super 8100.0*League 1 Shield100.0*Average seed
Hunslet 26 Newcastle 25 +4.8
-4.8
+1.1
Coventry 13 North Wales 36 No
Yes
-0.1
Keighley 92 Oxford 6 No
Yes
-0.1
All Golds 4 Doncaster 42 +0.3
London 36 South Wales 16 -0.1
Games Above .500
Chance Will Win Championship