How are these numbers calculated?

Big Games

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

Week of 5/9100.0*Demoted100.0*Average seed
Hull 0 Burnley 1 +24.2
-1.0
Everton 0 Sunderland 2 +10.8
-0.3
Leicester 2 Southampton 0 +3.2
-0.2
Aston Villa 1 West Ham 0 +1.6
-0.2
Newcastle 1 West Brom 1 +0.1
+0.0
Week of 5/16100.0*Demoted100.0*Average seed
Tottenham 2 Hull 0 +15.6
-0.3
QPR 2 Newcastle 1 -4.7
+0.1
Arsenal 0 Sunderland 0 +3.0
-0.1
Southampton 6 Aston Villa 1 -0.1
Sunderland 0 Leicester 0 -0.1
+0.0
Burnley 0 Stoke 0 +0.0
Week of 5/24100.0*Demoted100.0*Average seed
Hull 0 Man United 0 Yes
-0.1
Newcastle 2 West Ham 0 Yes
-0.1
Points
Chance Will Win Championship