How are these numbers calculated?

Big Games

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

Week of 4/21100.0*Average seed
Huddersfield 1 Scunthorpe 0 +0.2
MK Dons 1 Sheff United 0 -0.2
Week of 4/28100.0*Average seed
Rochdale 1 MK Dons 2 -0.3
Walsall 1 Huddersfield 1 -0.0
Week of 5/5100.0*Average seed
Huddersfield 2 Yeovil 0 +0.2
MK Dons 0 Walsall 1 +0.2
Points
Chance Will Win Championship