
40 Wn. App. 20 (1985)
696 P.2d 1247
MELVIN J. HERZOG, Appellant,
v.
THE DEPARTMENT OF LABOR AND INDUSTRIES, Respondent.
No. 6774-9-II.
The Court of Appeals of Washington, Division Two.
March 6, 1985.
David B. Vail, for appellant.
Kenneth O. Eikenberry, Attorney General, and Robert G. Swenson, Assistant, for respondent.
WORSWICK, C.J.
Some recipients of workers' compensation disability payments are also entitled to social security payments. When this is so, federal law prohibits the combined benefits from exceeding 80 percent of the recipient's average current earnings at the time the disability was suffered. Combined benefits exceeding this level must be reduced.[1] Federal law permits a state to take full advantage *22 of this by permitting the reduction to be taken entirely from the state benefits.[2] Washington has accepted this largess by the enactment of RCW 51.32.220.[3]
The dispute in this case is about how this reduction should be made where the recipient first receives a lump *23 sum partial disability award, and later receives monthly payments for total disability retroactive to the date of the partial disability award. We hold that the method used in this case by the Department of Labor and Industries was correct, and that the method used by the Board of Industrial Insurance Appeals was incorrect. Accordingly, we affirm a superior court judgment reversing the Board and reinstating the Department's determination.
In July 1977, the Department found Melvin Herzog to be permanently partially disabled. It awarded and paid him $5,700. He appealed. While the appeal was pending, the Department reassumed jurisdiction, found Herzog totally disabled, and made its decision retroactive to the July 1977 date of the lump sum partial disability award. As required by RCW 51.32.080(2)[4] the $5,700 was deducted from Herzog's pension reserve.
Herzog also became eligible for social security payments. Because his combined benefits would exceed the 80 percent level, the Department calculated the necessary reduction of his state benefits as follows:


  I. Determination of the reduction:
     Total monthly permanent disability
      entitlement                                  $602.00
     Add monthly Social Security entitlement        332.90
                                                    ______
     Total                                          934.90
     Subtract 80% Average Current Earnings          622.40
                                                    ______
     Amount of reduction                            312.50
 II. Application of reduction:
*24     Total monthly permanent disability
       entitlement                                 $602.00
     Subtract reduction                             312.50
                                                    ______
     Worker's Compensation payment
       after reduction and before adjustment
       for $5,700 previously paid                   289.50
III. Adjustment for $5,700 previously paid:
     Worker's Compensation payment after
       reduction                                    289.50
     Less deduction of monthly amortized
       value of $5,700 received                      45.03
                                                   _______
     Net monthly payment due from State            $244.47

Herzog appealed to the Board. Although he conceded that the $5,700 was properly deducted from his pension reserve under RCW 51.32.080(2), he argued that only the amount of his monthly permanent disability entitlement should be considered in calculating and applying the reduction. Thus, he contended, the calculations should be as follows:


  STEP ONE Determination of monthly worker's
    compensation benefits before reduction:
  RCW 51.32.060 total permanent
    disability entitlement                         $602.00
  Less amortized permanent partial
    disability award                                 45.03
                                                    ______
  Monthly total permanent disability
    payment before reduction                        556.97
  STEP TWO Determination of reduction:
  Worker's compensation reduced pension             556.97
  Add social security entitlement                   332.90
                                                    ______
      Total                                         889.87
  Subtract 80% of average current earnings          622.40
                                                    ______
  Reduction                                         267.47
  STEP THREE Application of reduction:
  Worker's compensation pension                     556.97
  Subtract reduction                                267.47
                                                   _______
  Monthly payment due from State                   $289.50

*25 While recognizing that the "result is exactly as though the Department has never paid the $5,700," the Board nevertheless adopted Herzog's calculations. It believed that the Department's determination penalized Herzog for appealing the original award. Therefore, it held that the $5,700 award was final and refused to consider it a part of his total disability benefits. The Superior Court recognized, as do we, that the Board's conclusion is flawed for two reasons. First, Herzog's partial disability award was not final, and the lump sum payment became a part of his total disability award. Second, Herzog's calculations make it appear that his monthly entitlement from the State has been reduced when in fact it has not been. Thus, his calculations result in a windfall to him, contrary to the obvious intent of the controlling statutes.
[1] Under RCW 51.52.050, an award which is appealed is not final. After he appealed, Herzog got what he asked for from the Department: a determination that he was totally, not partially, disabled. The money he had already received became part of his total disability award. RCW 51.32.130. The monthly amortized portion of the lump sum payment was part of his monthly payment just as surely as if he received it every month in cash.
[2, 3] The controlling statutes must be interpreted in light of the legislative purpose. In re Piercy, 101 Wn.2d 490, 681 P.2d 223 (1984); DeWeese v. Port Townsend, 39 Wn. App. 369, 693 P.2d 726 (1984). Herzog's method of calculation frustrates that purpose. Although it only purports to take the lump sum payment into account, it does not really do so. The notion of a penalty should not have infected the Board's reasoning. When an award is final, the amount of entitlement is fixed by law. A claimant should receive no more and no less. Herzog is entitled to $289.50 per month from the State. He is getting exactly that by getting $244.47 each month and by enjoying the $5,700 payment, the monthly amortized value of which is $45.03.[5]
*26 The Department's approach is consistent with the requirements of the statutes. It involves no injustice to Herzog. He submitted one claim; he cannot collect two awards. See Trayle v. Department of Labor & Indus., 70 Wn.2d 141, 422 P.2d 520 (1967).
Affirmed.
REED and ALEXANDER, JJ., concur.
NOTES
[1]  42 U.S.C. § 424a provides in pertinent part:

"(a) Conditions for reduction; computation
"If for any month prior to the month in which an individual attains the age of 65 
"(1) such individual is entitled to benefits under section 423 of this title, and
"(2) such individual is entitled for such month to periodic benefits on account of such individual's total or partial disability (whether or not permanent) under 
"(A) a workmen's compensation law or plan of the United States or a State, or
"(B) any other law or plan of the United States, a State, a political subdivision (as that term is used in section 418(b)(2) of this title), or an instrumentality of two or more States (as that term is used in section 418(k) of this title), ...
"the total of his benefits under section 423 of this title for such month and of any benefits under section 402 of this title for such month based on his wages and self-employment income shall be reduced (but not below zero) by the amount by which the sum of 
"(3) such total of benefits under sections 423 and 402 of this title for such month, and
"(4) such periodic benefits payable (and actually paid) for such month to such individual under such laws or plans,
"exceeds the higher of 
"(5) 80 per centum of his `average current earnings', or
"(6) the total of such individual's disability insurance benefits under section 423 of this title for such month and of any monthly insurance benefits under section 402 of this title for such month based on his wages and self-employment income, prior to reduction under this section."
[2]  Subsection (d) of 42 U.S.C. § 424a (in the version applicable to Herzog's case) provided:

"The reduction of benefits required by this section shall not be made if the workmen's compensation law or plan under which a periodic benefit is payable provides for the reduction thereof when anyone is entitled to benefits under this subchapter on the basis of the wages and self-employment income of an individual entitled to benefits under section 423 of this title."
[3]  The applicable version of RCW 51.32.220 provides in relevant part:

"For persons under the age of sixty-two receiving compensation for temporary or permanent total disability pursuant to the provisions of chapter 51.32 RCW, such compensation shall be reduced by an amount equal to the benefits payable under the federal old-age, survivors and disability insurance act as now or hereafter amended not to exceed the amount of the reduction established pursuant to 42 USC 424a." Laws of 1977, ch. 323, § 19, p. 1242.
[4]  RCW 51.32.080(2) provides in part: "[I]n case permanent partial disability compensation is followed by permanent total disability compensation, any portion of the permanent partial disability compensation which exceeds the amount that would have been paid the injured worker if permanent total disability compensation had been paid in the first instance, shall be deducted from the pension reserve of such injured worker and his or her monthly compensation payments shall be reduced accordingly."
[5]  Under Herzog's calculations, he would receive the same monthly payment as a claimant who had never received a partial disability award. E.g.:



                               Other Individual
    Monthly Entitlement                                            $602.00
    RCW 51.32.060
    Less deduction for prior PPD award                                   0
                                                                    ______
    Monthly disability payment before reduction                     602.00
    Reduction
    Worker's Compensation                                           602.00
    Add Social Security                                             332.90
                                                                    ______
    Total                                                           934.90
    Subtract 80% of average current earnings                        622.40
                                                                    ______
    Reduction                                                       312.50
    Application of reduction
    Worker's Compensation                                           602.00
    Reduction                                                       312.50
                                                                   _______
    Monthly payment from State                                     $289.50
                                    Herzog
  RCW 51.32.060 Monthly entitlement                                  $602.00
  Less deduction for prior PPD award                                   45.03
                                                                      ______
  Monthly disability payment before reduction                         556.97
  Reduction
  Worker's Compensation                                               556.97
  Add Social Security                                                 332.90
                                                                      ______
  Total                                                               889.87
  Subtract 80% of average current earnings                            622.40
                                                                      ______
  Reduction                                                           267.47
  Application of reduction
  Worker's Compensation                                               556.97
  Reduction                                                           267.47
                                                                     _______
  Monthly payment from State                                         $289.50

