t the beginning of 2017, your company buys a $30,000 piece of equipment that it expects to use for 4 years. The equipment has an estimated residual value of 6,000. The company expects to produce a total of 200,000 units. Actual production is as follows: 42,000 units in 2017, 48,000 units in 2018, 49,000 units in 2019, and 61,000 units in 2020. Required:

1. Determine the depreciable cost.
2. Calculate the depreciation expense per year under the straight-line method.
3. Use the straight-line method to prepare a depreciation schedule.
4. Calculate the depreciation rate per unit under the units-of-production method.
5. Use the units-of-production method to prepare a depreciation schedule.