Final answer:
The annual rate of return on the sculpture is -16.23%.
Step-by-step explanation:
To find the annual rate of return on the sculpture, we need to calculate the percentage change in its value over the period from 2009 to 2015.
The formula for calculating the annual rate of return is:
Rate of Return = ((Final Value - Initial Value) / Initial Value) * 100
Using the given values, we can plug them into the formula:
(($10,521,500 - $12,567,500) / $12,567,500) * 100 = -16.23%
Therefore, the owner had a negative annual rate of return of approximately -16.23% on the sculpture.