If you reach age 62 after 1978 but before 1984, we follow three major steps in finding your guaranteed alternative:
(a) First, we compute your average monthly wage, as described in § 404.232;
(b) Second, we find the primary insurance amount that corresponds to your average monthly wage in the benefit table in appendix III.
(c) Then we apply any automatic cost-of-living or ad hoc increases in primary insurance amounts that have become effective in or after the year you reached age 62.