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Ranger Corporation has decided to invest in renewable energy sources to meet part of its energy needs for production. It is considering solar power versus wind power. After considering cost savings as well as incremental revenues from selling excess electricity into the power grid, it has determined the following. Solar Wind Present value of annual cash ows $52,580 $128,450 Initial investment $39,500 $105,300 Determine the net present value and protability index of each project. (if the net present value is negative, use either a negative sign preceding the number eg -45 or parentheses e3 (45). Round present value answers to 0 decimal places, e.g. 125 and protability index answers to 2 decimal places, 9.3. 1525.) Solar Wind Net present value $ $ Protability index