A machine that produces cellphone components is purchased on January 1, 2020, for $151,000. It is expected to have a useful life of four years and a residual value of $11,000. The machine is expected to produce a total of 200,000 components during its life, distributed as follows: 40,000 in 2020, 50,000 in 2021, 60,000 in 2022, and 50,000 in 2023. The company has a December 31 year end.

Calculate the amount of depreciation to be charged each year, using each of the following methods:

i.	Straight-line method

Straight-line method depreciation

$

per year

ii.	Units-of-production method (Round depreciation per unit to 2 decimal places, e.g. 15.25 and final answer to 0 decimal places, e.g. 125.)

Units-of-production method depreciation

$

per unit

	Year
	2020	$
	2021	$
	2022	$
	2023	$

iii.	Double-diminishing-balance method

Rate

%

	Year
	2020	$
	2021	$
	2022	$
	2023	$