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_23680576_2 ( oct_2008 VARCHAR, aug_2008 VARCHAR )

### Question ###
How many polling percentages were there in October 2008 when is was 30.8% in Aug 2008?

### Accurate SQL ###

SELECT COUNT(oct_2008) FROM table_23680576_2 WHERE aug_2008 = "30.8%"