 In the 2007 redistribution , Menora , with a median income of $ 397 and a median age of 48 , with 42 @.@ 5 % being 55 years or over , was removed , whilst West Perth , with a slightly larger population and a median income of $ 698 and a median age of 34 , and a higher percentage of professionals and managers than the electorate 's average , was added . 
