How are these numbers calculated?

Big Games

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

Week of 5/7100.0*UEFA CL100.0*Average seed
West Ham 3 Manchester United 2 Yes
+0.0
Manchester City 2 Arsenal 2 +2.0
+0.3
West Ham 1 Swansea City 4 +1.5
Norwich City 0 Manchester United 1 -1.1
Tottenham Hotspur 1 Southampton 2 +0.1
Week of 5/15100.0*UEFA CL100.0*Average seed
Newcastle United 5 Tottenham Hotspur 1 +0.6
Arsenal 4 Aston Villa 0 +0.1
Points
Chance Will Win Championship