Operating margin is revenues minus the cost of goods sold and all operating expenses.

An organization which is geared towards enabling good pricing decisions is mainly focused on empowering the decision-makers with arguments and tools.

Principles of responsibility accounting means that corrective action is taken by the higher management and is communicated to the responsibility center, i.e. the individual responsible

Net present value analysis is a method commonly used to evaluate fixed assets under a formal capital budgeting system.

A profit center is an organizational segment in which a manager is accountable for profits [revenues minus expenses] and the invested capital used by the segment.

Trend analysis consists of reviewing the trend line of various costs incurred to see if there are any unusual variances from the long-term pattern, and reporting the reasons for these changes to management.

Import duties are the costs that can be included in an inventory valuation.

The responsibility of the profit and revenue center is actually the same.