machine costs 3,000,000 and has zero salvage value. the machine qualifies under a special depreciation category whereby the firm is allowed to use straight line depreciation over four years (the machine is appreciated 25% of its original value of 3,000,000 value in each year leading to full depreciation at the end of year 4). assume a discount rate of 10% and a 40% tax rate. what is the present value of depreciation tax savings associated with the machine (ignore half year rule).