Holding period and annual (investment) returns. Bohenick Classic Automobiles restores and rebuilds old classic cars. The company purchased and restored a classic 1957 Thunderbird convertible 6 years ago for $8,000.00. Today at auction, the car sold for $72,000.00. What are the holding period return and the annual return on this investment?

What is the holding period return of the car?

_______% (Round to two decimal places.)