No reports require the “Require price” option to be checked. If you have this option checked, it means that you require your drivers to specify what price they charged for the trip.
This same interface will also appear on an account job, with an account that is set to be billed instead of requiring direct payment, regardless if you have this option checked. This is so that the correct price for the trip can be retrieved for the invoice.
If no price is entered on the trip, it will simply not list any price in the reports for this trip.