"The City Fiscal shall have four assistants who shall receive compensation in accordance with the following scale: (a) The first assistant city fiscal shall receive three thousand six hundred pesos per annum; (b) the second assistant city fiscal shall receive three thousand pesos per annum; (c) the third assistant city fiscal shall receive two thousand seven hundred sixty pesos per annum; and (d) the fourth assistant city fiscal shall receive two thousand four hundred pesos per annum. The city fiscal and his assistants shall be appointed by the President of the Philippines with the consent of the Commission on Appointments.