Consider the following two mutually exclusive investment alternatives: Net Cash Flow Machine A Machine B End of Year 0 -$2,000 -$1.000 - $600 --$900 2 -$700 -$1.000 + $200 3 $800 + $500 Suppose that your firm needs either machine for only 2 years. The net proceeds from the sale of machine B are estimated to be $200. What should be the required net proceeds from the sale of machine A so that both machines could be considered economically indifferent at an interest rate of 10%