Final answer:
The project's accounting rate of return (ARR) is 32.1%, which is below the firm's criteria of 37.5%. Consequently, the firm should not accept the project.
Step-by-step explanation:
The accounting rate of return (ARR) is calculated by dividing the average annual after-tax income by the average book value of the investment. In this case, the average after-tax income is $78,310, and the average book value is $243,460. So, the ARR is calculated as follows:
ARR = (Average Annual After-Tax Income) / (Average Book Value of the Investment).
ARR = $78,310 / $243,460.
ARR = 0.3214, or 32.1% when expressed as a percentage.
Since Wild horse Corp.'s investment decision is based on an ARR of 37.5%, and the project's ARR is 32.1%, it is below the firm's required ARR. Therefore, the firm should not accept the project based on this criterion.