Berkshire Corporation purchased a copying machine for $8,700 on January 1,2023 . The machine's residual value was $425 and its expected fife was 5 vears or 2,000,000 copies: Actual usage was 480,000 copies the first vear and 400,000 the second vear. Required: 1. Compute depreciation expense for 2023 and 2024 using the: a. Stralght-fine method. Depreclation expense $ x per year b. Double-dectining-balance method. c. Units-of-production method. Do not round intermediate calculations. 2. For each depreciation method, what is the book value of the machine at the end of 2023 ? At the end of 2024