CREATE TABLE table_21514460_1 (withdrawal_rate__2010_11_ VARCHAR(255), graduation_rate__2011_12_ VARCHAR(255))
What is the withdrawal rate for the school district with a graduation rate of 89.3%?
    
SQL: SELECT withdrawal_rate__2010_11_ FROM table_21514460_1 WHERE graduation_rate__2011_12_ = "89.3%"