CREATE TABLE table_42923 ("Rank" FLOAT, "Location" TEXT, "Total Passengers" FLOAT, "Annual change" TEXT, "Capacity" FLOAT, "Capacity in use" TEXT)

Which Annual change has a Capacity in use of 66.21%?
SELECT "Annual change" FROM table_42923 WHERE "Capacity in use" = '66.21%'
SELECT "Annual change" FROM "table_42923" WHERE "Capacity in use" = '66.21%'