CREATE TABLE table_21405 ("Province" TEXT, "South Asians 2001" FLOAT, "% 2001" TEXT, "South Asians 2011" FLOAT, "% 2011" TEXT)

What was the percentage in 2011 of the province that had 2.4% population in 2001?
SELECT "% 2011" FROM table_21405 WHERE "% 2001" = '2.4%'
SELECT "% 2011" FROM "table_21405" WHERE "% 2001" = '2.4%'