ABC purchased machinery for $176,400 on January 1, 2017. It is estimated that the machinery will have a useful life of 20 years, salvage value of $14,700, production of 91,400 units, and working hours of 40,900. During 2017, the company uses the machinery for 11,452 hours, and the machinery produces 11,882 units.

Compute depreciation under the straight-line, units-of-output, working hours, sum-of-the-years-digits, and double-declining-balance methods.

PLEASE SHOW how you get the answer.

Depreciation Straight-line Units-of-output Working hours Sum-of-the-years'-digits 8,085 21,021 45,276 14,630 17,640