Final answer:
The annual rate of return on the sculpture is -17.63%.
Step-by-step explanation:
To calculate the annual rate of return on the sculpture, we need to determine the percentage change in its value from the purchase price to the selling price. The formula for calculating the rate of return is: Rate of return = ((Selling price - Purchase price) / Purchase price) * 100
Given that the purchase price of the sculpture in 2010 was $12,662,500 and it was sold in 2015 for $10,426,500, we can plug these values into the formula:
Rate of return = (($10,426,500 - $12,662,500) / $12,662,500) * 100
Simplifying the calculation gives us:
Rate of return = (-$2,236,000 / $12,662,500) * 100
Dividing the numerator and denominator, we get:
Rate of return = -0.1763 * 100
Rounding to 2 decimal places, the annual rate of return on the sculpture is -17.63%.