chico company is considering the purchase of a new high-speed machine for its factory. the machine will cost $160000 and will save the company $45000 per year in cash operating costs. the machine has an estimated useful life of five years and no expected salvage value. the company's cost of capital is 12%. Assume depreciation is straight line over 5 years and the tax rate is 20%.

compute net present value of this investment,

calculate the internal rate of return