function cutNum($num, $precision = 2) {
    $posOfDecimal = stripos($num, '.');
    if($posOfDecimal !== false){
        $integerPart = floor($num);
        $trimmedDecimal = substr($num, $posOfDecimal, $precision + 1);
        return $integerPart . $trimmedDecimal;
    }
    return $num;
}