please help solve the empty boxes

Required information A potential investment has a cost of $425,000 and a useful life of 8 years. Annual cash sales from the investment are expected to be $255,338 and annual cash operating expenses are expected to be $100,588. The expected salvage value at the end of the investment's life is $50,000. The company has a before-tax discount rate of 18%. Required: Calculate the following. (Round dollar amounts to the nearest whole dollar and IRR to one decimat place (1.e. 055=5.5%) Enter negative amounts with a minus sign.)