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_256286_61 (_percentage_yes VARCHAR, yes_votes VARCHAR)

### Question ###
What is the percentage of yes when there were 218846 yes votes

### Accurate SQL ###

SELECT _percentage_yes FROM table_256286_61 WHERE yes_votes = 218846