How are these numbers calculated?

Big Games

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

Week of 5/8100.0*Average seed
Norwich City LFC 0 Crystal Palace 3 +0.0
Week of 5/15100.0*Average seed
Enfield Town LFC 3 Ipswich Town LFC 4 +0.1
Week of 5/22100.0*Average seed
MK Dons 0 Ipswich Town LFC 3 +0.8
Chance Will Win Championship