How are these numbers calculated?

Big Games

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

Week of 5/13100.0*Championship100.0*Average seed
Sunderland 0 Swansea City 2 -14.4
+0.4
Crystal Palace 4 Hull City 0 -13.1
+0.0
Week of 5/17100.0*Championship100.0*Average seed
Swansea City 2 West Brom 1 +0.9
Burnley 1 West Ham 2 +0.2
Watford 0 Manchester City 5 +0.1
Chelsea 4 Watford 3 +0.0
Points
Chance Will Win Championship