Problem 8-6 Calculating NPV [LO 4] For the given cash flows, suppose the firm uses the NPV decision rule. Year Cash Flow -$ 154,000 62,000 77,000 61,000 M At a required return of 8 percent, what is the NPV of the project? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) NPV $ At a required return of 20 percent, what is the NPV of the project? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) NPV $