How are these numbers calculated?

Big Games

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

Week of 4/25100.0*Average seed
Millwall 2 Leyton Orient 1 -0.1
Milton Keynes 0 Walsall 1 -0.1
Week of 5/2100.0*Average seed
Leyton Orient 1 Huddersfield 1 +0.0
Peterborough 2 Swindon 2 +0.0
Points
Chance Will Win Championship