value: 10.00 points A firm evaluates all of its projects by using the NPV decision rule. Year 0 1 WN - Cash Flow -$27,000 20,000 14,000 7,000 Required: (a) At a required return of 25 percent, what is the NPV for this project? (Click to select) (b) At a required return of 33 percent, what is the NPV for this project? (Click to select)