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
Old Actonians 0 Luton Town LFC 2 -0.1
Gillingham 5 Old Actonians 1 -0.0
Norwich City LFC 0 Crystal Palace 3 +0.0
Week of 5/15None
Week of 5/22None
Chance Will Win Championship