How are these numbers calculated?

Big Games

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

Week of 4/30100.0*Relegated100.0*Average seed
QPR 1 C & K Basildon 4 -11.8
+0.2
Week of 5/7100.0*Relegated100.0*Average seed
Portsmouth 3 QPR 2 -12.5
+0.1
Week of 5/14100.0*Relegated100.0*Average seed
Swindon 0 QPR 2 No
+0.3
West Ham 0 Spurs 7 +26.5
-0.3
Points
Chance Will Win Championship