How are these numbers calculated?

Big Games

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

Week of 5/5100.0*UEFA CL100.0*Average seed
Arsenal 2 Manchester United 0 +8.1
+0.4
Manchester City 5 Crystal Palace 0 -2.2
-0.0
Liverpool 0 Southampton 0 +0.6
Swansea City 1 Everton 0 +0.1
Week of 5/10100.0*UEFA CL100.0*Average seed
West Ham 0 Liverpool 4 -13.6
-0.2
Stoke City 1 Arsenal 4 +12.4
+0.3
Southampton 0 Arsenal 2 +9.4
+0.3
Manchester City 2 Leicester City 1 -4.3
-0.1
Tottenham Hotspur 2 Manchester United 1 +1.5
+0.1
Week of 5/15100.0*UEFA CL100.0*Average seed
Arsenal 3 Everton 1 +25.0
+0.3
Liverpool 3 Middlesbrough 0 -15.7
-0.2
Arsenal 2 Sunderland 0 +8.4
+0.2
Manchester City 3 West Brom 1 -5.3
-0.1
Watford 0 Manchester City 5 -1.6
-0.0
Points
Chance Will Win Championship