Section 411-510-4 - DETERMINING THE REDUCTION AMOUNT, IF ANY1. The reduction amount that is to be applied to the recipient's monthly disability retirement benefit is determined as follows: A. For members of the State Employee and Teacher, Legislative and Judicial Retirement Program, by subtracting the figure representing 80% of average final compensation, converted to a monthly amount by dividing by twelve, from the amount represented by the sum of the initial disability retirement benefit and actuarial equivalent of the lump sum settlement.B. For members of the Participating Local District Retirement Program, by subtracting the figure representing 80% of average annual earnings, converted to a monthly amount by dividing by twelve, from the amount represented by the sum of the initial disability retirement benefit and actuarial equivalent of the lump sum settlement.2. If the result obtained in Section 4.1 is zero or a negative number, then no reduction is applied to the monthly disability retirement benefits.3. If the reduction amount calculated in Section 4.1 causes the initial disability retirement benefit to be reduced to an amount that is less than the "actuarial equivalent of accumulated contributions", then the full reduction amount calculated in Section 4.1 may not be applied. Instead, the recipient shall receive the "actuarial equivalent of accumulated contributions" in lieu of the amount obtained by applying the full reduction described in section 4.1. 94-411 C.M.R. ch. 510, § 4