Calculate the percentage of Asian students among students of other races who graduated from institution in Alabama in year 2013 within 100 percent of normal / expected time.
Asian refers to race = 'A'; Alabama refers to state = 'Alabama'; graduated within 100 percent of normal/expected time refers to grad_100; percentage = MULTIPLY(DIVIDE(SUM(race = 'A'), SUM(grad_cohort)), 100);
SELECT CAST(SUM(CASE WHEN T2.race = 'A' THEN 1 ELSE 0 END) AS REAL) * 100 / SUM(T2.grad_cohort) FROM institution_details AS T1 INNER JOIN institution_grads AS T2 ON T1.unitid = T2.unitid WHERE T2.year = 2013 AND T1.state = 'Alabama'