• The Accounting Rate of Return (ARR) formula is useful in determining a project’s annual percentage rate of return.

  • ARR is calculated as the average annual return/initial investment.
  • ARR is usually used when considering multiple projects because it provides the expected rate of return from each project.
  • One of the limitations of ARR is that it does not distinguish between investments that generate different cash flows over the life of the project.
  • ARR is different from the required rate of return (RRR), which is the minimum return that an investor can accept on an investment or project that compensates them for a given level of risk.