You're trying to determine whether or not to expand your business by building a new manufacturing plant. The plant has an installation cost of $20.6 million, which will be depreciated straight-line to zero over its four-year life. If the plant has projected net jncome of $1,915,000,$2,195,000,$2,134,000, and $1,376,000 oyer these four years, what is the project's average accounting return (AAR)? (Do not round intermediate calculetions and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)