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*Average seed
Leicester City 0 West Ham United 2 +0.1
Everton 1 Southampton 1 -0.0
Week of 5/6100.0*Average seed
Leicester City 3 Arsenal 1 -0.1
Week of 5/13100.0*Average seed
Tottenham Hotspur 5 Leicester City 4 +0.1
West Ham United 3 Everton 1 -0.1
Points
Chance Will Win Championship