(Solving for 1) Kirk Van Houten, who has been married for 21 years, would like to buy his wife an expensive diamond ring with a platinum setting on their 30-year wedding anniversary. Assume that the cost of the ring will be $12.500 in 9 years. Kirk currently has $4543 to invest What al on his investment to accumulate enough money to pay for the ring? must eam on his investment to accumulate enough money to pay for the ring is %. (Round to two decimal places.)