CREATE TABLE table_23680576_2 (oct_2008 VARCHAR2, aug_2008 VARCHAR2)

How many polling percentages were there in October 2008 when is was 30.8% in Aug 2008?
SELECT COUNT(oct_2008) FROM table_23680576_2 WHERE aug_2008 = "30.8%"
SELECT COUNT("oct_2008") FROM "table_23680576_2" WHERE "30.8%" = "aug_2008"