Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_19213 ( "Name" text, "2011 Census" real, "2006 Census" real, "% change" text, "Land area (km\u00b2)" text, "Density (pop/km\u00b2)" text, "Population rank" real )

### Question ###
When the % change is 8.4, what is the population rank?

### Accurate SQL ###

SELECT MIN("Population rank") FROM table_19213 WHERE "% change" = '8.4'