The Winsey Company purchased equipment on January 2, 2007 for $700,000. The equipment has the following characteristics:

Estimated service life ... 20 years ... Estimated residual value ... $50,000

100,000 hours

950,000 units of output

During 2007 and 2008, the company used the machine for 4,500 and 5,500 hours, respectively, and produced 40,000 and 60,000 units, respectively.

Required

Compute the depreciation for 2007 and 2008 under each of the following methods:

1. Straight-line

2. Hours worked

3. Units of output

4. Sum-of-the-years’-digits

5. Double-declining-balance

6. 150%-declining-balance

7. Compute the company’s return on assets (net income divided by average total assets, as discussed in Chapter 6) for each method for 2007 and 2008, assuming that income before depreciation is $100,000. For simplicity, use ending assets, and ignore interest, income taxes, and other assets.