Required information A potential investment has a cost of $455,000 and a useful life of 7 years. Annual cash sales from the investment are expected to be $207,158 and annual cash operating expenses are expected to be $81,608. The expected salvage value at the end of the investment's life is $45,000. The company has a before-tax discount rate of 15%. Required: Calculate the following. (Round dollar amounts to the nearest whole dollar and IRR to one decimal place (l.e. 055=5.5%). Enter 1egative amounts with a minus sign.)