The Catering Pace Report will pull the most recent Revenue from Line Items on Bookings/Events meaning any changes you have made to Line Items (dollar amount, attendees) will be the information shown on the report. Invoice Discounts, Taxes and Service Fees are not shown on this report.
If sourced by Booking (ie any menu items within the Booking) & revenue is based on the Booking Date. If a Booking is over multiple days, it'll split the revenue evenly over each day. If sourced by Event, (ie any menus assigned to an Event), revenue is based on the Event Date. If there is a discrepancy when running by Booking or Event it would either be due to the dates, or Menu Items that have been added to a Booking, but not allocated to a specific Event.