rather than how the question is solved below is there a faster way to solve it with a finacial calc if so please show the steps (how to enter it in fv pv compute ext) formulas are always much apreicated

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 $1,858,500,$1,911,800,$1,880,200, and $1,333,700 over these four years, what is the project's average accounting return (AAR)? (Round the final answer to 2 decimal places.) Average accounting return Average annual net income = Total net income for 4 years /4 =6,977,000/4=$1,744,250 Average investment = Initial investment 1/2 =12,000,0001/2=$6,000,000 Average accounting return %= Average annual net income / Average investment =1,744,250/6,000,000=29.07%