During its first year, an investment grew at a rate equal to 7.5%. Then, in the second year, it lost part of its value at a rate equal to 9.25%. Finally, in the third year, it gains part of its value at a rate equal to 10.5%. What is the average rate of return?

Although appealing to more refined tastes, art as a collectible has not always performed so profitably. during 2003, an auction house sold a sculpture at auction for a price of $10,211,500. unfortunately for the previous owner, he had purchased it in 2000 at a price of $12,177,500. what was his annual rate of return on this sculpture? (a negative answer should be indicated by a minus sign. do not round intermediate calculations and enter your answer as