what is the percentage of democratic voters in which the registered voters is 67.8%?
CREATE TABLE table_27003223_4 (
    democratic VARCHAR,
    registered_voters VARCHAR
)
SELECT democratic FROM table_27003223_4 WHERE registered_voters = "67.8%"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: what is the percentage of democratic voters in which the registered voters is 67.8%? ### Input: CREATE TABLE table_27003223_4 (
    democratic VARCHAR,
    registered_voters VARCHAR
) ### Response: SELECT democratic FROM table_27003223_4 WHERE registered_voters = "67.8%"