CREATE TABLE table_name_90 (cargo__tonnes_ VARCHAR, international__non_cis_ VARCHAR)

What are the cargo tonnes when the international (non-CIS) is 297 421?
SELECT cargo__tonnes_ FROM table_name_90 WHERE international__non_cis_ = "297 421"
SELECT "cargo__tonnes_" FROM "table_name_90" WHERE "297 421" = "international__non_cis_"