The Pan American Bottling Co. Is considering the purchase of a new machine that would increase the speed of bottling and save money. The net cost of this machine is $55,000. The annual cash fiows have the following projections. Use Appendix B and Appendix. D for an approximate answer but calculate your final answer using the formula and financial calculator methods. a. If the cost of capital is 15 percent, what is the net present value of selecting a new machine? (Do not round intermediate calculations and round your final answer to 2 decimal places.) b. What is the intemal rate of return? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.)