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 $$21\mathrm{.}8$ million, which will be depreciated straight$-$line to zero over its four$-$year life. If the plant has projected net income of

$$1,975,000,$$$2,225,000,$$$2,194,000,$ and $$1,406,000$ over these four years, what is the project's average accounting return $($AAR$)?$

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

Average accounting return