Problem A: A machine costing $350,000 with a 5-year useful life and $50,000 salvage value is installed on January 1, 2021. The manager estimates that the machine will produce 100,000 units of product during its life. It actually produces the following units during its first three years: Year 1 35,000; Year 2 30,000; Year 3 20,000. Instructions: Compute the depreciation expense, accumulated depreciation, and book value for years one through three under straight-line, units of production and double declining balance.

Problem B: A machine costing $350,000 with a 5-year useful life and $50,000 salvage value is installed on July 1, 2021. The manager estimates that the machine will produce 100,000 units of product during its life. It actually produces the following units during its first three years: Year 1 35,000; Year 2 30,000; Year 3 20,000. Instructions: Compute the depreciation expense, accumulated depreciation, and book value for years one through three under straight-line, units of production and double declining balance.

Straight-Line

Year	Depreciation Expense	Accumulated Depreciation	Book Value
2021
2022
2023

Units of Production

Year	Depreciation Expense	Accumulated Depreciation	Book Value
2021
2022
2023

Double Declining Balance

Year	Depreciation Expense	Accumulated Depreciation	Book Value
2021
2022
2023