Enter rent amount and property management % so balance is correctly reflected

I would like to be able to enter my lease rent $ and the percentage charged by my property management company so I can accurately reflect the tenants balance. I get paid the net amount from the property management company and don’t have a charge come through for their charge. If I charge the tenant $2,300 a month but only receive $2,116 (less 8%) the app shows the tenant as having a larger balance due each month.