영카트 관리자  '쇼핑몰관리'에 'de_aaa_sale'필드를 만들어 특정금액을 입력하게 했습니다.

shop.override.js 파일에서 자동 금액계산 부분에 특정금액이포함되어 계산되게 하려하는데 'de_aaa_sale'에 넣은 값을 어떻게 불러와야 되는지요?

if (typeof price_calculate === "function") {
        price_calculate = (function() {
            var cached_function = price_calculate;

            return function() {
               
                if( $(".2017_renewal_itemform").length ){

                    var it_price = parseInt($("input#it_price").val());
     
                    if(isNaN(it_price))
                        return;

                    var $el_prc = $("input.io_price");
                    var $el_qty = $("input[name^=ct_qty]");
                    var $el_type = $("input[name^=io_type]");
     
                    var price, type, qty, total = 0;

                    $el_prc.each(function(index) {
                        price = parseInt($(this).val());
                        qty = parseInt($el_qty.eq(index).val());
                        type = $el_type.eq(index).val();      

                        if(type == "0") { // 선택옵션
                            total += (it_price + price) * qty ;
                        } else { // 추가옵션
                            total += price * qty;
                        }
                            total = total - de_aaa_sale;
                    });

                    $("#sit_tot_price").empty().html("<span>TOTAL </span><strong> $ "+String(total));

                } else {
                    cached_function.apply(this, arguments); // use .apply() to call it
                }
               
            };
        }());
    }   //end if check function