How are these numbers calculated?

Big Games

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

Week of 5/16100.0*Average seed
Académica 3 Naval 1º de Maio 1 +0.4
Estrela Amadora 1 Guimaraes 0 +0.2
Maritimo 1 Sporting Lisbon 2 +0.2
Vitoria Setubal 0 Leixoes 1 -0.1
CD Nacional 1 Paços Ferreira 0 +0.0
Week of 5/23100.0*Average seed
Guimaraes 3 Académica 2 -0.1
Leixoes 1 Maritimo 0 +0.1
Points
Chance Will Win Championship