The plebiscite was held on 11 July .
The plebiscite was produced 362,209 votes ( 97.8 % ) for East Prussia and 7,980 votes ( 2.2 % ) for Poland .
The plebiscite was held on 11 July , and produced 362,209 votes ( 97.8 % ) for East Prussia and 7,980 votes ( 2.2 % ) for Poland .