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_20 (working_tax_credit VARCHAR, occupational_pensions VARCHAR, employment___salaries_ VARCHAR, _wages_ VARCHAR)

### Question ###
Employment ( salaries & wages) of 64%, and a Occupational pensions of 6% has what working tax credit?

### Accurate SQL ###

SELECT working_tax_credit FROM table_name_20 WHERE employment___salaries_ & _wages_ = "64%" AND occupational_pensions = "6%"