On January 1, 2021, Montana Enterprises purchased a $100,000 semi-trailer truck. In 2021 and 2022, Montana depreciated the truck using the straight-line method with an estimated 10 year useful life and an estimated $10,000 salvage value. At the beginning of 2023, Montana decided to adjust the initial estimates. The company now believes the truck will last a total of 15 years and have a salvage value of $17,000. At December 31, 2023, what will be the truck's adjusted book value reflecting the change in estimate