Elgin Restaurant Supplies is analyzing the purchase of manufacturing machine that will cost $34,000. The annual cash inflows are as follows. Use Appendix D. Year 1 2 3 Cash Flow $17,000 15,000 10,000 WN a. Determine the IRR using interpolation. (Do not round PV factor. Round other intermediate calculations to the nearest whole dollar. Round the final answer to 2 decimal places.) IRR % b. With a cost of capital of 11 percent, should the machine be purchased? Yes O No c. With information from part b, compute the Profitability Index. (Do not round PV factor. Round other intermediate calculations to the nearest whole dollar. Round the final answer to 3 decimal places.) Profitability Index