How are these numbers calculated?

Big Games

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

Week of 8/29100.0*Chance in playoffs100.0*Average seed
Hull FC 28 Hull KR 0 -16.4
-0.6
Widnes 24 Wigan 10 -7.6
-0.2
Catalan 46 London 4 -1.3
-0.0
Wakefield 42 Salford 6 +0.6
+0.0
Week of 9/5100.0*Chance in playoffs100.0*Average seed
Hull KR 14 Catalan 32 Out
-0.6
Bradford 12 Widnes 32 -1.9
-0.0
Huddersfield 38 Hull FC 28 +0.1
Castleford 26 Wakefield 22 +0.1
Salford 58 London 26 -0.0
Week of 9/12100.0*Chance in playoffs100.0*Average seed
Wakefield 18 Hull KR 42 +1.8
Hull FC 24 Leeds 19 -0.4
Salford 36 Widnes 6 -0.3
Games Above .500
Chance Will Make Playoffs