BCS Exam BAP18 Topic 8 Question 4 Discussion

A business case is being created for a new, automated auditing system that will improve the IT department's ability to record and monitor all the computing devices used across the organisation.

The sponsor of the project is keen to get a better idea of the financial implications of the project and has asked for the simplest calculation possible. This calculation should consider the tangible costs and tangible benefits of the project, as well as showing when it will have saved the department as much as it has cost.

Which of the following investment appraisal calculations has the sponsor asked for?