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Exact Photo Service purchased a new color printer at the beginning of 2018 for $40,400. The printer is expected to have a four-year useful life and a $1,616 salvage value. The expected print production is estimated at 1,500,000 pages. Actual print production for the four years was as follows:

2018	545,500
2019	480,700
2020	378,800
2021	387,900
Total	1,792,900

The printer was sold at the end of 2021 for $1,916.

3. Calculate the amount of gain or loss from the sale of the asset under each of the depreciation methods. (Amounts to be deducted should be indicated with minus sign.

4. double declining balance ????

5. units of production ???