CREATE TABLE table_28565 ("Finished" TEXT, "Performance Order" FLOAT, "Percentage of votes" TEXT, "Artist" TEXT, "Act" TEXT, "Semi Finals Result" TEXT)

Name the performance order for 2.15%
SELECT "Performance Order" FROM table_28565 WHERE "Percentage of votes" = '2.15%'
SELECT "Performance Order" FROM "table_28565" WHERE "Percentage of votes" = '2.15%'