Youre trying to determine whether to expand your business by building a new manufacturing plant. The plant has an installation cost of $11.5 million, which will be depreciated straight-line to zero over its four-year life. If the plant has projected net income of $1,804,300, $1,857,600, $1,826,000, and $1,279,500 over these four years, what is the projects average accounting return (AAR)?