Internal Auditing: Assurance & Advisory Services, Fourth edition, chapter 13, page 54 question 8, I was looking for the answer.

Handling Custom 8. A staff internal auditor found the following possible deviations from prescribed controls and documented them in her working papers. Invoice Number Prescribed Control Possible Deviation Written autho- rizations of sales by sales order depart- ment. Verbal autho- rization by phone by sales order depart- ment. 248 No evidence of verification; quantities and prices are incorrect. Verification of sales order quantities and prices. 333 377 Verification of sales order quantities and prices. No evidence of verification, but quantities and prices are correct. 617 Billing depart- ment verifi- cation of unit prices. Price verifica- tion indicated on invoice; the prices do not agree with the price list in effect at the time of sale. For each of the items listed above, indicate whether there is or is not a deviation from a prescribed control. Briefly explain your answer. 13-54 INTERNAL AUDITING: ASSURANCE & ADVISORY SERVICES