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_75812 ( "Member State sorted by GDP" text, "GDP in s billion of USD (2012)" real, "GDP % of EU (2012)" text, "Annual change % of GDP (2012)" text, "GDP per capita in PPP US$ (2012)" real, "Public Debt % of GDP (2013 Q1)" real, "Deficit (-)/ Surplus (+) % of GDP (2012)" text, "Inflation % Annual (2012)" real, "Unemp. % 2013 M7" real )

### Question ###
What is the GDP % of EU in 2012 of the country with a GDP in billions of USD in 2012 of 256.3?

### Accurate SQL ###

SELECT "GDP % of EU (2012)" FROM table_75812 WHERE "GDP in s billion of USD (2012)" = '256.3'