AN ORDINANCE APPROVING SUPPLEMENTAL BUDGET NO. 6 OF THE GENERAL FUND AND SUPPLEMENTAL BUDGET NO. 3 OF THE SPECIAL ACCOUNT-CITY ECONOMIC ENTERPRISES, BOTH FOR CALENDAR YEAR 1999, WITH AN ESTIMATED INCOMES OF P15,898,404.00 AND P1,165,000.00, RESPECTIVELY, AGAINST AN ESTIMATED EXPENDITURES OF SAME AMOUNTS, TO IMPLEMENT VARIOUS APPROVED APPROPRIATION ORDINANCES