Name the number of seats to be won being % of popular vote at 6.88%
create table table_19283982_4 (_number_of_seats_to_be_won varchar, _percentage_of_popular_vote varchar, PRIMARY KEY (_number_of_seats_to_be_won))
select _number_of_seats_to_be_won from table_19283982_4 where _percentage_of_popular_vote = "6.88%"