private function prepareData($key, $count)
{
    list($from, $to) = explode('_', $key);
    if ($from == '*') {
        $from = $this->getFrom($to);
    }
    if ($to == '*') {
        $to = $this->getTo($to);
    }
    $label = $this->_renderRangeLabel(
        empty($from) ? 0 : $from * $this->getCurrencyRate(),
        empty($to) ? $to : $to * $this->getCurrencyRate()
    );
    $value = $from * $this->getCurrencyRate() . '-' . $to * $this->getCurrencyRate();// . $this->dataProvider->getAdditionalRequestData();

    $data = [
        'label' => $label,
        'value' => $value,
        'count' => $count,
        'from'  => $from,
        'to'    => $to,
    ];

    return $data;
}