How are these numbers calculated?

Big Games

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

Week of 4/27100.0*Down to Championship100.0*Average seed
Sunderland 4 Cardiff 0 +14.6
-0.6
Week of 5/3100.0*Down to Championship100.0*Average seed
Newcastle 3 Cardiff 0 +2.3
-0.3
Man United 0 Sunderland 1 +2.1
Stoke 4 Fulham 1 -0.4
+0.1
Aston Villa 3 Hull 1 +0.1
Week of 5/11100.0*Down to Championship100.0*Average seed
Cardiff 1 Chelsea 2 -0.1
Fulham 2 Crystal Palace 2 -0.1
Points  (Full Screen)
Chance Will Win Championship  (Full Screen)