source/Core/PriceList.php
public function getNettoSum()
    {
        $dSum = 0;
        foreach ($this->_aList as $oPrice) {
            $dSum += $oPrice->getNettoPrice();
        }

        return $dSum;
    }
public function getNettoSum()
    {
        $dSum = 0;
        foreach ($this->_aList as $oPrice) {
            $dSum += $oPrice->getNettoPrice();
        }

        return $dSum;
    }
public function getNettoSum ( ) { $ dSum = 0 ; foreach ( $ this -> _aList as $ oPrice ) { $ dSum += $ oPrice -> getNettoPrice ( ) ; } return $ dSum ; }
Returns the sum of list Netto prices

@return double
Returns the sum of list Netto prices