I have defined two program indicator : number of doctor on program of doctor register and number of nurse on program of nurse registering, and then defined an indicator :ratio_of_nurse_doctor= num_of_nurse/num_of_doctor.
query in visual app, got the num_of_nurse、um_of_doctor, but the ratio_of_nurse_doctor is 0.
need I do analysis table again to analysis the ratio_of_nurse_doctor indicator?