How are these numbers calculated?

Big Games

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

Week of 7/14100.0*Championship100.0*Average seed
Manchester City 2 Bournemouth 1 +6.6
-0.2
West Ham United 3 Watford 1 -5.4
+0.0
Everton 1 Aston Villa 1 -0.7
+0.0
Southampton 1 Brighton & Hove 1 +0.2
Week of 7/22100.0*Championship100.0*Average seed
Bournemouth 0 Southampton 2 +14.1
-0.4
Aston Villa 1 Arsenal 0 +5.4
-0.3
Watford 0 Manchester City 4 -5.1
+0.1
Brighton & Hove 0 Newcastle United 0 +0.1
Manchester United 1 West Ham United 1 +0.1
Week of 7/26100.0*Championship100.0*Average seed
Everton 1 Bournemouth 3 -13.4
+0.6
West Ham United 1 Aston Villa 1 Yes
-0.1
Arsenal 3 Watford 2 -4.2
+0.1
Points
Chance Will Win Championship