Each member shall make regular monthly contributions to the Plan at a rate calculated as follows.
Where positions covered by the Plan are included in an agreement under the Federal Social Security Act, each member shall contribute to the Pension Fund a monthly amount determined as follows:
(a) 2.25 percent of his or her monthly compensation on which social security taxes are payable; and
(b) Five percent of his or her monthly compensation which is in excess of such amount.
(Ord. 4440. Passed 10-28-87.)