Laverty Clinic plans to purchase a new centrifuge machine for its New York facility. The machine costs $279,000 and is expected to have a useful life of 7 years, with a terminal disposal value of $50,000. Savings in cash operating costs are expected to be S63,000 per year. However, additional working capital is needed to keep the machine running efficiently. The working capital must continually be replaced, so an investment of S30,000 needs to be maintained at all times, but this investment is u y recoverable wil be cashed in a the end o he usefu li e Laverty inic's required rate o eturn is 0% gno e income taxes in your analysis. Assume a cash flows occur a year-end except orinitial investment amounts Laverty Clinic uses straight-line depreciation for its machines. (Click the icon to view the Future Value of S1 factors.) (Click the icon to view the Future Value of Annuity of S1 factors.) (Click the icon to view, the Present Value of $1 factors.) (Click the icon to view the Present Value of Annuity of $1 factors.) Read the requirements. Requirement 1. Calculate net present value. (Use factors to three decimal places, X.XXX, and use a minus sign or parentheses for a negative net present value. Enter the net present value of the investment rounded to the nearest whole dollar. The net present value is 38,724 Requirement 2 Calculate in mal rate o return. Use a tna and-error approach and straight in interpola on as necessary. Round a present value calculations he nearest o e dolar and round he to o decimal pla es XX % The internal rate of return (IRR) is