CREATE TABLE table_2683116_1 (E VARCHAR2, vap VARCHAR2, turnout VARCHAR2)

What is the e/vap value for a turnout of exactly 85.7%?
SELECT E / vap FROM table_2683116_1 WHERE turnout = "85.7%"
SELECT "E" / NULLIF("vap", 0) FROM "table_2683116_1" WHERE "85.7%" = "turnout"