A cost of plant asset is $25,000 and depreciation expenses computed during its useful life using units of production method are: Year 1 53,500 Year 2 $2,500 Year 3 $5,500 Year 4 $7,500 Required: 1. What is accumulated depreciation at the end of Year 2? 2. What is the asset book value at the end of Year 3? Important Notes: - Write formulas. Show all calculations