In some instances, the report does not include the entire commission (commission for the platform, monthly commission and additional expenses).
By default, the commission is taken from the brokerage report.
Check the settings for report uploading and the method of calculating the commission, see http://en.webmarketstat.ru/help/301
In the event that you find insignificant discrepancies, or if you load reports only from your platform but you have additional expenses for the broker account, you can use the “Trade results adjustment” tool, see http://en.webmarketstat.ru/help/168.