Piwik\DataTable\Renderer\Csv::removeFirstPercentSign PHP Метод

    protected function removeFirstPercentSign($value)
    {
        $needle = '%';
        $posPercent = strpos($value, $needle);
        if ($posPercent !== false) {
            return substr_replace($value, '', $posPercent, strlen($needle));
        }
        return $value;
    }