CREATE TABLE table_name_84 (margin_of_victory VARCHAR2, winning_score VARCHAR2)

What was the margin of victory when the winning score was 9 (72-68-64-67=271)?
SELECT margin_of_victory FROM table_name_84 WHERE winning_score = −9(72 - 68 - 64 - 67 = 271)
SELECT "margin_of_victory" FROM "table_name_84" WHERE "winning_score" = −9(FALSE)