CLASS {{p}}cl_repl DEFINITION PUBLIC FINAL CREATE PUBLIC.
  PUBLIC SECTION.
    METHODS calculate
      IMPORTING
        iv_stock         TYPE decfloat34
        iv_reorder_point TYPE decfloat34
        iv_target_stock  TYPE decfloat34
        iv_pack_size     TYPE decfloat34
        iv_min_qty       TYPE decfloat34
      RETURNING
        VALUE(rv_qty)    TYPE decfloat34.
ENDCLASS.


CLASS {{p}}cl_repl IMPLEMENTATION.
  METHOD calculate.
    IF iv_stock >= iv_reorder_point.
      rv_qty = 0.
      RETURN.
    ENDIF.

    DATA(lv_need) = iv_target_stock - iv_stock.
    DATA(lv_min_qty) = iv_min_qty.
    IF lv_min_qty < 0.
      lv_min_qty = 0.
    ENDIF.
    IF lv_need < lv_min_qty.
      lv_need = lv_min_qty.
    ENDIF.

    IF lv_need <= 0.
      rv_qty = 0.
      RETURN.
    ENDIF.

    rv_qty = ceil( lv_need / iv_pack_size ) * iv_pack_size.
  ENDMETHOD.
ENDCLASS.