The monthly amount of the retirement allowance for any member of Plan C shall consist of an amount equal to two percent of the member's final compensation multiplied by his years of creditable service provided that no retired employee shall receive less in retirement payments than the amount of his accumulated contributions at the date of retirement. Any balance remaining to his credit upon the retiree's death shall be paid to his designated beneficiary or estate.
La. Consolidated Public Retirement § 11:1972