Any person interested may appear at the hearing and object to the withdrawal of said portion from the maintenance district, or may object to the continuance of the remaining territory as a maintenance district. The board of supervisors shall consider and pass upon all objections and if it finds that the portion of the district sought to be withdrawn will not be benefited by remaining within the maintenance district and that the remaining territory not sought to be withdrawn will be benefited by continuing as a maintenance district, then it shall order such withdrawal and the continuance of the remaining territory as a maintenance district.