How are these numbers calculated?

Big Games

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

Week of 5/4100.0*Championship100.0*Average seed
Leicester City 0 West Ham United 2 -8.5
+1.3
Bournemouth 1 Swansea City 0 -3.0
-0.0
Everton 1 Southampton 1 -1.1
+0.1
Stoke City 1 Crystal Palace 2 -1.0
-0.1
Brighton & Hove 1 Manchester United 0 +0.1
-0.2
Watford 2 Newcastle United 1 +0.1
-0.1
Week of 5/6100.0*Championship100.0*Average seed
West Ham United 0 Manchester United 0 -0.4
Manchester City 3 Brighton & Hove 1 +0.2
Tottenham Hotspur 1 Newcastle United 0 +0.1
Chelsea 1 Huddersfield Town 1 +0.1
Manchester City 0 Huddersfield Town 0 +0.1
Swansea City 0 Southampton 1 -0.0
Week of 5/13100.0*Championship100.0*Average seed
West Ham United 3 Everton 1 +1.9
Liverpool 4 Brighton & Hove 0 +0.2
Burnley 1 Bournemouth 2 -0.2
Huddersfield Town 0 Arsenal 1 +0.2
Manchester United 1 Watford 0 +0.2
Crystal Palace 2 West Brom 0 -0.1
Newcastle United 3 Chelsea 0 -0.1
Southampton 0 Manchester City 1 +0.1
Points
Chance Will Win Championship