Machinery acquired new on january 1 at a cost of $80,000 was estimated to have a useful life of 10 years and a residual salvage value of $20,000. straight-line depreciation was used. on january 1, following six full years of use of the machinery, management decided that the estimate of useful life had been too long and that the machinery would have to be retired after three years, that is, at the end of the ninth year of service. under this revised estimate, the depreciation expense for the seventh year of use would be:

Problem 9-5. net present value and taxes [lo 1, 2] penguin productions is evaluating a film project. the president of penguin estimates that the film will cost $20,000,000 to produce. in its first year, the film is expected to generate $16,500,000 in net revenue, after which the film will be released to video. video is expected to generate $10,000,000 in net revenue in its first year, $2,500,000 in its second year, and $1,000,000 in its third year. for tax purposes, amortization of the cost of the film will be $12,000,000 in year 1 and $8,000,000 in year 2. the company’s tax rate is 35 percent, and the company requires a 12 percent rate of return on its films. required what is the net present value of the film project? to simplify, assume that all outlays to produce the film occur at time 0. should the company produce the film?