Kirk Van$$ Houten, who has been married for $21$years$,$ would like to buy his wife an expensive diamond ring with a platinum setting on their $30$ year wedding anniversary. Assume that the cost of the ring will be $$$$11,082$ in $99$ years. Kirk currently has $$$$4,700$ to invest. What annual rate of return must Kirk earn on his investment to accumulate enough money to pay for the$$ ring? The annual rate of return Kirk must earn on his investment is enter your response here$\%.($Round to the nearest$$ integer.$)$