Final answer:
To compute the annual depreciation of the refrigerator using the straight-line method, deduct the residual value from the cost, divide by its useful life, and round to the nearest dollar, which gives $16,520 as the annual depreciation.
Step-by-step explanation:
To calculate the annual depreciation for the refrigerator using the straight-line method, you need to subtract the estimated residual value from the cost of the refrigerator and then divide that amount by the useful life of the refrigerator. The formula for calculating straight-line depreciation is as follows:
Annual Depreciation = (Cost - Residual Value) ÷ Useful Life
Using the given figures:
Annual Depreciation = ($89,000 - $6,400) ÷ 5 years
Annual Depreciation = $82,600 ÷ 5 years
Annual Depreciation = $16,520 per year
Rounding this to the nearest dollar, the annual depreciation would be $16,520.