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_name_18 (val_de_marne VARCHAR, seine_saint_denis VARCHAR)

### Question ###
WHAT IS THE VAL-DE-MARNE WITH A Seine-Saint-Denis of 2.7%?

### Accurate SQL ###

SELECT val_de_marne FROM table_name_18 WHERE seine_saint_denis = "2.7%"