public static function percentageWordsWithThreeSyllables($strText, $blnCountProperNouns = true, $strEncoding = '')
    {
        $intWordCount = Text::wordCount($strText, $strEncoding);
        $intLongWordCount = self::wordsWithThreeSyllables($strText, $blnCountProperNouns, $strEncoding);
        $intPercentage = Maths::bcCalc(Maths::bcCalc($intLongWordCount, '/', $intWordCount), '*', 100);

        return $intPercentage;
    }