DATA :  lv_back like glt0-tsl01, "금액타입
   lv_front(17)  type c.  "문자타입

*  방법(1)
  WRITE lv_back CURRENCY 'KRW' TO lv_front.

  CALL FUNCTION 'CLOI_PUT_SIGN_IN_FRONT'
    CHANGING
      value = lv_front.

*  방법(2)
WRITE lv_back CURRENCY 'KRW' TO lv_front.

IF LV_BACK < 0.
CONCATENATE '-' LV_FRONT INTO LV_FRONT
ENDIF.

CONDENSE LV_FRONT NO-GAPS.