20 CFR 404.222 - Use of benefit table in finding your primary insurance amount from your average monthly wage.
(b)Finding your primary insurance amount from benefit table. We find your average monthly wage in column III of the table. Your primary insurance amount appears on the same line in column IV (column II if you are entitled to benefits for any of the 12 months preceding the effective month in column IV). As explained in § 404.212(e), there is a minimum primary insurance amount of $122 payable for persons who became eligible or died after 1978 and before January 1982. There is also an alternative minimum of $121.80 (before the application of cost-of-living increases) for members of this group whose benefits were computed from the benefit table in effect in December 1978 on the basis of either the old-start computation method in §§ 404.240 through 404.242 or the guaranteed alternative computation method explained in §§ 404.230 through 404.233. However, as can be seen from the extended table in appendix III, the lowest primary insurance amount under this method is now $1.70 for individuals for whom the minimum benefit has been repealed.