Required information Consider the cash flows shown. Year Revenues, $ 0 1 2 3 4 0 25,000 19,000 4,000 28,000 Costs, $ -6,000 -30,000||-7,000 -5,500 -13,000 NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Determine the external rate of return using the MIRR method if i,= 18% per year and ib = 10% per year. Verify your answer with the spreadsheet function. The spreadsheet function is (Click to select) The external rate of return is % per year