public function getTaxPercent($obTaxList)
    {
        if (empty($obTaxList) || $obTaxList->isEmpty()) {
            return 0;
        }

        //Calculate tax percent
        $fTaxPercent = 0;
        foreach ($obTaxList as $obTaxItem) {
            $fTaxPercent += $obTaxItem->percent;
        }

        $fTaxPercent = PriceHelper::round($fTaxPercent);

        return $fTaxPercent;
    }