Способ доставки добавить % от суммы к товару

      if($this->shop_delivery_id == 2)
      {
         $Shop_Cart_Controller = Shop_Cart_Controller::instance();
               
         $amount = 0;
         $quantity = 0;
         $weight = 0;
         
         $aShop_Cart = $Shop_Cart_Controller->getAll($oShop);
         
         foreach ($aShop_Cart as $oShop_Cart)
            {
               if ($oShop_Cart->Shop_Item->id)
               {
                  if ($oShop_Cart->postpone == 0)
                  {
                     // Prices
                     $oShop_Item_Controller = new Shop_Item_Controller();
                     if (Core::moduleIsActive('siteuser'))
                     {
                        $oSiteuser = Core_Entity::factory('Siteuser')->getCurrent();
                        $oSiteuser && $oShop_Item_Controller->siteuser($oSiteuser);
                     }

                     $oShop_Item_Controller->count($oShop_Cart->quantity);

                     $aPrices = $oShop_Item_Controller->getPrices($oShop_Cart->Shop_Item);

                     $amount += $aPrices['price_discount'] * $oShop_Cart->quantity;
                     $quantity += $oShop_Cart->quantity;
                     $weight += $oShop_Cart->Shop_Item->weight * $oShop_Cart->quantity;
                  }
               }
            }

            //print_r($_COOKIE);
            $oShop_Controller = Shop_Controller::instance();

            // Округляем значения, переводим с научной нотации 1Е+10 в десятичную
            $price['tax'] = $oShop_Controller->round($price['tax']/100*$amount);
            $price['price'] = $oShop_Controller->round($price['price']/100*$amount);
            $price['price_discount'] = $oShop_Controller->round($price['price_discount']/100*$amount);
            $price['price_tax'] = $oShop_Controller->round($price['price_tax']/100*$amount);   

            return $price;      
      }
      else{
         $oShop_Controller = Shop_Controller::instance();

         // Округляем значения, переводим с научной нотации 1Е+10 в десятичную
         $price['tax'] = $oShop_Controller->round($price['tax']);
         $price['price'] = $oShop_Controller->round($price['price']);
         $price['price_discount'] = $oShop_Controller->round($price['price_discount']);
         $price['price_tax'] = $oShop_Controller->round($price['price_tax']);

      return $price;         
      }