CREATE TABLE table_27923 ("meas. num" FLOAT, "passed" TEXT, "YES votes" FLOAT, "NO votes" FLOAT, "% YES" TEXT, "Const. Amd.?" TEXT, "type" TEXT, "description" TEXT)

What was the result of the ballot that had a 52.49% yes vote percentage?
SELECT "passed" FROM table_27923 WHERE "% YES" = '52.49%'
SELECT "passed" FROM "table_27923" WHERE "% YES" = '52.49%'