A company is considering investing $$2,000,000$ in equipment used in the manufacture of carpets that is expected to have a useful life of nine years and a salvage value at the end of nine years of $$50,000.$ This equipment will allow the company to save $$660,000$ per year through reduced labor costs. Determine depreciation in year three and book value end of year four using:

a$.$ Straight Line method

b$.150\%$ declining balance method

c$.$ GDS method

d$.$ ADS method