Required information A potential investment has a cost of $440,000 and a useful life of 7 years. Annual cash sales from the investment are expected to be $183,068 and annual cash operating expenses are expected to be $72,118. The expected salvage value at the end of the investment's life is $35,000. 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 i.e. .055=5.5% ). Enter negative amounts with a minus sign.)