I'm going to assume that it was the students who left and that you want to know the ratio of the number of students who left to the number of teachers.
If you were actually after something else you will need to state it more clearly.
I'm going to assume that it was the students who left and that you want to know the ratio of the number of students who left to the number of teachers.
If you were actually after something else you will need to state it more clearly.
