# The Social Security (Graduated Retirement Benefit) (No. 2) Regulations 1978, Paragraph 4


(1) Where during a person's period of enhancement there are one or more increases (other than any made by such an order as is mentioned in paragraph 3(4) above) in the weekly rate of graduated retirement benefit which would have been payable to him during that period if he had not deferred his entitlement to a Category A or Category B retirement pension or made an election by virtue of section 30(3) of the Act, the total amount of increment for the period of enhancement shall be—
(a) 1/7th per cent., for each incremental period in the period of enhancement, of the weekly rate of the graduated retirement benefit to which he would have been entitled immediately after attaining pensionable age if he had not deferred his entitlement to a Category A or Category B retirement pension; plus
(b) in respect of each such increase, 1/7th per cent. of its weekly rate for each incremental period in the period beginning with the day on which that increase occurred and ending with the same day the period of enhancement ends.
(2) Where one or more orders have come into force under section 124 of the Act during the period of enhancement the weekly rates mentioned in sub-paragraph (1) above shall be determined as if the order or orders had come into force before the beginning of the period of enhancement.

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Source: https://www.legislation.gov.uk/uksi/1978/393/schedule/2/paragraph/4 (the official version)
Page: https://openlegislation.uk/social-security-graduated-retirement-benefit-no-2-regulations-1978/schedule-2/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.