Example 1. Ms. A, whose primary insurance amount we computed to be $432.40 in June 1979 in §§ 404.210 through 404.212 (based on average indexed monthly earnings of $903), had earnings of $11,000 in 1979 which were not used in the initial computation of her primary insurance amount. We may recompute her primary insurance amount effective for January 1980. In this recomputation, her 1979 earnings may be substituted in their actual dollar amount for the lowest year of her indexed earnings that was used in the initial computation. In Ms. A's case, we substitute the $11,000 for her 1966 indexed earnings of $8,911.36. Her total indexed earnings are now $251,470.05 and her new average indexed monthly earnings are $911. We apply to Ms. A's new average indexed monthly earnings the same benefit formula we used in the initial computation. Doing so produces an amount of $396.00. An automatic cost-of-living increase of 9.9 percent was effective in June 1979. We increase the $396.00 amount by 9.9 percent to find Ms. A's recomputed primary insurance amount of $435.30. Later we increased the primary insurance amount to $497.60 to reflect the 14.3 percent cost-of-living increase beginning June 1980 and to $553.40 to reflect the 11.2 percent cost-of-living increase beginning June 1981.
Example 2. Mr. B, whose primary insurance amount we computed to be $429.20 (based on average monthly wages of $502) in June 1978 in §§ 404.220 through 404.222 , had earnings of $12,000 in 1978 which were not used in the initial computation of his primary insurance amount. We may recompute his primary insurance amount effective for January 1979. In this recomputation, his 1978 earnings are substituted for the lowest year of earnings used in the initial computation ($2,700 in 1952). Mr. B's total earnings are now $142,000 and his new average monthly wage is $537.
We next find Mr. B's new average monthly wage in column III of the December 1978 benefit table in appendix III. Reading across, we find his recomputed primary insurance amount on the same line in column IV, which is $407.70. We then apply the 9.9 percent, the 14.3 percent and the 11.2 percent automatic cost-of-living increases for June 1979, June 1980, and June 1981, respectively, to compute Mr. B's primary insurance amount of $569.60.
20 C.F.R. §404.284