If a miscellaneous member of this plan who is entitled to ordinary disability retirement benefits is not qualified for voluntary service retirement, he or she shall receive a disability retirement allowance of one and one-half percent of final compensation for each year of service. In no event shall such allowance be less than twenty-five (25) percent of his or her final compensation nor shall such allowance if it exceeds twenty-five (25) percent of his or her final compensation be greater than the service retirement allowance to which he or she would have been entitled if he or she had remained in the continuous employ of the city until attaining the age of fifty (50), and had immediately retired upon attaining such age with the same final compensation as is used to compute his or her disability benefits under this section. If any such miscellaneous member is qualified for voluntary service retirement, he or she shall receive a disability retirement allowance of an amount equal to the service retirement allowance he or she would have received if he or she had elected to retire from service on the date when the retirement system manager orders his or her retirement for disability, of an allowance equal to twenty-five (25) percent of his or her final compensation, whichever amount is greater. (Prior code § 34.05.513)