identification division.
       program-id. assignment-1-files.
       
       environment division.
       input-output section.
       file-control.   select sales-data assign to 
           "C:\temp\sales-data.txt". 
                       select com-data assign to "C:\temp\com-data.txt".
       configuration section.

       data division.
       fd sales-data.
       01  sales-record.
           05  sales-name                      pic x(20).
           05  sales-amount                    pic 999V999.
       fd com-data.
       01 com-record.
           05                                  pic x(5).
           05  name-out                        pic x(20).
           05                                  pic x(15).
           05  com-out                         pic 9999999.99.
       working-storage section.
       01 end-flag                             pic x(3) value "YES".
       01 final-commission                     pic 99.99.
       procedure division.
       100-main.
           open input sales-data
               output com-data
           perform until end-flag = "NO"
               read sales-data
                   at end 
                   move "NO" to end-flag
                   not at end
                       perform 150-calculation
                end-read
            end-perform.
               close sales-data
                     com-data
           goback.
           
       150-calculation.
           move sales-name to name-out
           multiply sales-amount by 0.12 giving final-commission
           move final-commission to com-out
           write com-record after advancing 1 line.
       end program assignment-1-files.