20 CFR §234.53

1. (a)The lump-sum refund payment is calculated as follows:
   1. (1)Combine the railroad employee's creditable earnings, including military service, under the Social Security Act and Railroad Retirement Act for each of the years 1951 through 1974;
   2. (2)Determine the amount of the employee's creditable earnings in excess of the amounts for each year shown in the chart in paragraph (b) of this section;
   3. (3)Multiply the results of paragraph (a)(2) of this section by the percentage shown in the chart in paragraph (b) of this section; and
   4. (4)Add the results of paragraph (a)(3) of this section. The total is the amount of the lump-sum refund payment.
2. (b)Chart for calculation of lump-sum refund payment.