Imagine you are a manager and decide whether you would require the following information for planning, controlling or decision making:

(a) The amount claimed for taxi fares by staff last month.

(b) The prices charged by a new supplier for services or materials.

(c) The cost of running the office photocopier.

(d) The cost of employing subcontracted staff, compared with your own employees.

(e) The cost of making a component, compared with buying it from a supplier.