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_name_22 ( density__hab__km²__ VARCHAR, extension_km² VARCHAR )

### Question ###
What is the density (hab/ km ) when the extension km is 380,64?

### Accurate SQL ###

SELECT density__hab__km²__ FROM table_name_22 WHERE extension_km² = "380,64"