This audit is for properties that have a restaurant point of sale (eg. Micros/Aloha/Squirrell) that is not directly interfaced with the PMS. Restaurant checks that are signed to guest rooms would be brought from the restaurant to the Front Desk for manual posting to the appropriate guest folios.
In the example below, there were three bills given to the Front Desk that day for meals in the Pub.
The second report is from the PMS under Reports => Financial => Transaction Register Balance => Detail => With Guest Names.
Using the PMS Report, compare the bills to confirm that the right Room Number was charged, the right amount was charged, and there were no Bills missed (some properties may even run another Report from the POS to show all Room Charges, instead of using the individual Receipts).