CREATE TABLE table_42077 ("Rank" FLOAT, "Location" TEXT, "Total Passengers" FLOAT, "Annual change" TEXT, "Capacity in use" TEXT)

What is the Capacity in use with an Annual change that is 21.8%?
SELECT "Capacity in use" FROM table_42077 WHERE "Annual change" = '21.8%'
SELECT "Capacity in use" FROM "table_42077" WHERE "Annual change" = '21.8%'