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_189598_7 (population__2011_ VARCHAR, change___percentage_ VARCHAR)

### Question ###
When 4.5 is the percentage of change how many population counts were made for 2011?

### Accurate SQL ###

SELECT COUNT(population__2011_) FROM table_189598_7 WHERE change___percentage_ = "4.5"