Ticket payments and promo-code reporting dimensions

Open Events → Custom Reporting. Create a New Custom Report or open the saved report, and select the intended event in its filters.

Use the event registration custom report with Initial Payment Total, Net Payment Total, Total Refund, Promo Applied and Promo Discount. These identify the registrant/payment amount and applied promo code. If you need attendee/ticket details, join the guest/activity report by registration identity, but do not sum its repeated registration-level payment or discount columns as if each attendee separately paid that amount. A registrant can pay for several tickets, and a registration-level promo may affect multiple items; a receipt/payment total is not a per-attendee cash allocation.