How are these numbers calculated?

Big Games

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

Week of 4/28100.0*Relegated100.0*Average seed
Chelsea 6 QPR 1 +21.9
-0.6
Bolton 1 Tottenham 4 -9.0
+0.1
Wigan 4 Newcastle 0 +7.9
-0.2
Tottenham 2 Blackburn 0 -3.2
+0.1
West Brom 0 Aston Villa 0 +0.5
Sunderland 2 Bolton 2 +0.0
Week of 5/5100.0*Relegated100.0*Average seed
QPR 1 Stoke City 0 -27.2
+0.7
Bolton 2 West Brom 2 -4.2
+0.1
Aston Villa 1 Tottenham 1 +0.6
Blackburn 0 Wigan 1 +0.2
-0.2
Week of 5/13100.0*Relegated100.0*Average seed
Stoke City 2 Bolton 2 No
+0.2
Man. City 3 QPR 2 +14.1
-0.5
Norwich 2 Aston Villa 0 +0.1
Wigan 3 Wolverhampton 2 -0.1
Points
Chance Will Win Championship