public function displayValue($locale = null, $internationalFormat = null, $format = true)
    {
        return LaraCart::formatMoney(
            $this->discount(),
            $locale,
            $internationalFormat,
            $format
        );
    }
public function displayValue($locale = null, $internationalFormat = null, $format = true)
    {
        return LaraCart::formatMoney(
            $this->discount(),
            $locale,
            $internationalFormat,
            $format
        );
    }
public function displayValue ( $ locale = null , $ internationalFormat = null , $ format = true ) { return LaraCart :: formatMoney ( $ this -> discount ( ) , $ locale , $ internationalFormat , $ format ) ; }
Displays the value in a money format.

@param null $locale
@param null $internationalFormat

@return string
Displays the value in a money format .