James purchased a used truck in February, two years ago, for his flower shop to make deliveries. He purchased the truck for 8,029. He is selling the truck in July for 6,073. The truck weighs 4,500 lbs and was designed specifically for the flower shop. What is his depreciation for his truck?

(This is all the information provided in the question. The answer is 771 I just want to know how to get to that answer)