The average price of a single-family home in Calgary has dropped for the third consecutive month and in October was more than $53,000 less than it was in July when it hit a record $505,920. 2 `: O9 F3 o1 y' N! F3 g - v! O g1 O9 `% F& g" E+ M. khttp://www.canada.com/calgaryher ... ee7aa2f&k=35625