The capital investment committee of Iguana Inc. is considering two capital investments. The estimated operating income and net cash flows from each investment are as follows: Each project requires an investment of $600,000. Straight-line depreciation will be used, and no residual value is expected. The committee has selected a rate of 10% for purposes of the net present value analysis. Required: 1a. Compute the average rate of return for each investment. If required, round your answer to one decimal place. 1b. Compute the net present value for each investment. Use the present value of $1 table above. If required, round to the nearest dollar. If required, use the minus sign to indicate a negative net present value