The event saw socios group Compromiso Blanco question Perez's management of the club.
Zinedine Zidane believes Pepe's turn will come, as Real Madrid continue to work on contract extensions for their stars.
Barcelona won late against Valencia, despite losing Iniesta to injury, Luis Enrique says it shows the team's quality.
Granada failed to register their first La Liga win of the season as they were held to a goalless draw by fellow strugglers Sporting Gijon.
Lionel Messi delivered a foul-mouthed tirade toward Valencia fans who threw objects at Barcelona players near the end of Saturday's game.