What are the holding period return and the annual return on this investment?

Holding period and annual (investment) returns. Bohenick Classic Automobiles restores and rebuilds old classic cars. auction, the car sold for $100,800.00. What are the holding period return and the annual return on this investment? The company purchased and restored a classic 1957 Thunderbird convertible 8 years ago for $8,400.00. Today at What is the holding period return of the car? % (Round to two decimal places.)