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 $24.6 million, which will be depreciated straight-line to zero over its four-year life. Required: If the plant has projected net income of $2,115,000, $2,295,000, $2,334,000, and $1,476,000 over these four years, what is the project's average accounting return (AAR)? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).)