What is Accounting Rate Of Return?

Legal Definition
Accounting rate of return, also known as the Average rate of return, or ARR is a financial ratio used in capital budgeting. The ratio does not take into account the concept of time value of money. ARR calculates the return, generated from net income of the proposed capital investment. The ARR is a percentage return. Say, if ARR = 7%, then it means that the project is expected to earn seven cents out of each dollar invested (yearly). If the ARR is equal to or greater than the required rate of return, the project is acceptable. If it is less than the desired rate, it should be rejected. When comparing investments, the higher the ARR, the more attractive the investment. Over one-half of large firms calculate ARR when appraising projects.
-- Wikipedia
Legal Definition
When accrual statements are used to predict profits. Or the ratio of earnings before interest and taxes. It is a percentage of capital employed in the accounting period. AKA book value method, financial statement method, and simple rate of return.