Simple product price. Битрикс. Получить цену с учетом скидок на простой товар.

class.php

$price = CCatalogProduct::GetOptimalPrice($getElemData['ID'], 1, $USER->GetUserGroupArray(), 'N');

            $arDiscounts = CCatalogDiscount::GetDiscountByProduct($getElemData['ID'], $USER->GetUserGroupArray(), "N", array(),SITE_ID);
            if(is_array($arDiscounts) && sizeof($arDiscounts) > 0) {
                $final_price = CCatalogProduct::CountPriceWithDiscount($price['PRICE']['PRICE'], $price['PRICE']['CURRENCY'], $arDiscounts);
                $this->arResult['PRODUCT']['PRICE'] = CCurrencyLang::CurrencyFormat($final_price,$price['PRICE']['CURRENCY']);
            }