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
Estrela Amadora 1 Guimaraes 0 +0.6
Belenenses 1 Rio Ave 0 +0.1
CD Nacional 1 Paços Ferreira 0 +0.1
Académica 3 Naval 1º de Maio 1 +0.1
Week of 5/23100.0*Average seed
Rio Ave 2 Estrela Amadora 1 -0.5
Paços Ferreira 1 Trofense 0 -0.2
Guimaraes 3 Académica 2 -0.2
Points
Chance Will Win Championship