Your firm has been hired to develop new software for the university's class registration system. Under the contract, you will receive $500,000 as an upfront payment. You expect the development costs to be $442,000 per year for the 3 next years. Once the new system is in place, you will receive a final payment of $866,000 from the university 4 years from now. a. What are the IRRs of this opportunity?(Hint: Build an Excel model which tests the NPV at 1% intervals from 1% to 40%. Then zero in on the rates at which the NPV changes signs.)