RFL Company purchases a factory machine at a cost of $18,000 on January 1, 2017. RFL expects the machine to have a salvage value of $2,000 at the end of its 4-year useful life. During its useful life, the machine is expected to be used 160,000 hours. Actual annual hourly use was 2017, 40,000; 2018, 60,000; 2019, 35,000; and 2020, 25,000.

Instructions:

Preparred depreciation schedules for the following methods:

(a) Straight-Line.

(b) Units-of-Activity.

(c) Declining Balance.