You're trying to determine whether to expand your business by building a new manufacturing plant. The plant has an installation cost of $12 million, which will be depreciated straight line to zero over its four year life. If the plant has projected net income of $1,856,700, $1,910,000, $1,878,400, and $1,331,900 over these four years, what is the project's average accounting return (AAR)? (Round the final answer to 2 decimal places.) Average accounting return %