TrashCan::recalculatePercent

public function recalculatePercent($totalSizeIndicator = '\Bitrix\Disk\Volume\Module\Disk', $excludeSizeIndicator = null): self
{
	if (is_string($totalSizeIndicator) && !empty($totalSizeIndicator) && class_exists($totalSizeIndicator))
	{
		/** @var VolumeModuleDisk $totalSizeIndicator */
		$totalSizeIndicator = new $totalSizeIndicator();
	}
	if (!($totalSizeIndicator instanceof VolumeIVolumeIndicator))
	{
		throw new ArgumentException('Wrong parameter totalSizeIndicator');
	}
	$totalSizeIndicator->setOwner($this->getOwner());
	$totalSizeIndicator->loadTotals();
	$total = $totalSizeIndicator->getTotalSize() + $totalSizeIndicator->getPreviewSize();

	if ($total > 0)
	{
		$filter = $this->getFilter(
			[
				'=INDICATOR_TYPE' => static::className(),
				'=OWNER_ID' => $this->getOwner(),
				'>FILE_COUNT' => 0,
			],
			VolumeTable::getEntity()
		);
		$where = Query::buildFilterSql(VolumeTable::getEntity(), $filter);

		$tableName = VolumeTable::getTableName();

		$sql = 'UPDATE '.$tableName.' SET PERCENT = ROUND((FILE_SIZE + PREVIEW_SIZE) * 100 / '.$total.', 4) WHERE '.$where;

		$connection = Application::getConnection();
		if ($connection->lock(self::$lockName, self::$lockTimeout))
		{
			$connection->queryExecute($sql);
			$connection->unlock(self::$lockName);
		}
	}

	return $this;
}