Some channels charge a commission on every booking. It's not uncommon for a property manager to require reimbursement for those channel fees from their owners. This support article illustrates how to pass through channel commissions to owners via the owner statement.
Go to Modules > Property Management
...select the owner and then navigate to the Property tab.
There you will find a setting to "Assess Channel Commissions to Owner", if set to Yes, the channel commissions will pass through to the owner statement.
Also note that when "Assess Channel Commission to Owner" is enabled, there are two new options within the Mgmt Commission calculation:
Gross less Channel Commission
Net less Channel Commission
Many property managers will inflate property rates to various channels (on Lodgix that is called a rate multiplier) in an effort to recoup the channel fees / commissions.
Choosing to have your management commissions assessed on the "Gross less Channel Commission" will remove the channel commissions from gross rental charges (which were probably already inflated due to the use of the rate multiplier).
How to Set Channel Commissions
Navigate to settings > channel management > integrations
The commission set here, will be increased by the Lodgix commissions that are assessed per channel (Airbnb +1%, Booking.com / Expedia +2%). So if Booking.com charges 15%, and Lodgix charges 2% the combined 17% commission amount will pass through to the owner via the owner statement.