Table schema:
CREATE TABLE table_19283982_4 (_number_of_seats_to_be_won VARCHAR, _percentage_of_popular_vote VARCHAR)

Question: Name the number of seats to be won being % of popular vote at 6.88%
SQL: SELECT _number_of_seats_to_be_won FROM table_19283982_4 WHERE _percentage_of_popular_vote = "6.88%"