Your company has just purchased a new machine that costs $10,000. The machine has an expected life of 10 years and salvage value of $700. The depreciation life is 10 year. Compare the present values of the depreciation that would be obtained, using SL(straight-line method), SOYD(sum of the year's digits), DDB(double declining balance), or a combination of two methods. Ignore ITC and Section 179.