Complex sentence: The team with most number of points at the end of the season is declared champion, while the bottom four teams are relegated and play in the Campeonato Brasileiro Série B in the 2015 season.
Split into simpler sentences: The team with most number of points at the end of the season will be declared champion. The bottom four teams will be relegated and will play in the Campeonato Brasileiro Série B in the 2015 season.