What is the percentage of subject who are female used the Vehicle as weapon?
female refers to gender = 'F'; use Vehicle as weapon refers to subject_weapon = 'Vehicle'; percentage = divide(count(case_number where subject_weapon = 'Vehicle'), count(case_number)) where gender = 'F' * 100%
SELECT CAST(SUM(T1.subject_weapon = 'Vehicle') AS REAL) * 100 / COUNT(T1.case_number) FROM incidents T1 INNER JOIN subjects T2 ON T1.case_number = T2.case_number WHERE T2.gender = 'F'
database name:db_id shooting
Incidents table Incidents Cols: case number dtype text, date dtype date, location dtype text, subject statuses dtype text, subject weapon dtype text, subjects dtype text, subject_count dtype integer, officers dtype text, 
officers table officers Cols: case number dtype text, race dtype text, gender dtype text, last name dtype text, first name dtype text, full name dtype text, 
subjects table subjects Cols: case number dtype text, race dtype text, gender dtype text, last name dtype text, first name dtype text, full name dtype text, 
