Although appealing to more refined tastes, art as a collectible has not always performed so profitably. During 2003, Sotheby's sold the Edgar Degas bronze sculpture Petite Danseuse de Quatorze Ans at auction for a price of $10,251,500. Unfortunately for the previous owner, he had purchased it in 1998 at a price of $12,257,500. What was his annual rate of return on this sculpture? (A negative answer should be Indicated by a minus sign. Do not round Intermedlate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Annual rate of return %6