Greene Company purchased a machine for $75,000 that was expected to last 6 years and to have a salvage value of $6,000. At the beginning of the machine's fourth year the company decided that the estimated useful life should be revised to a total of 10 years instead of 6 years and the salvage value revised to be $5,500. Straight-line depreciation was used throughout the machine's life. Calculate the depreciation expense for the fourth year of the machine's useful life.

The correct answer is $1,800,000.

Explanation:

According to the scenario, the computation of the given data are as follows:

Net working Capital = Current Assets - Current Liabilities

Where,

Current Assets = cash and marketable securities + accounts receivable + inventory

Current Assets = $400,000 + $1,200,000 + $2,100,000 = $3,700,000

And Current Liabilities = accrued wages and taxes + accounts payable + notes payable

Current Liabilities  = $500,000 + $800,000 + $600,000 = $1,900,000

So, Net Working Capital = $3,700,000 - $1,900,000

= $1,800,000