How are these numbers calculated?

Big Games

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

Week of 4/26100.0*Average seed
Bristol Rovers 0 Brighton 2 +0.5
Huddersfield 2 Walsall 0 +0.2
Tranmere 1 Southend 0 -0.1
Oldham 2 Cheltenham 1 -0.1
Port Vale 2 Northampton 2 +0.0
Week of 5/3None
Points
Chance Will Win Championship