Graph the NPV of the following cashflows using discount rates between 0 and 250% (by 10%). How many IRRs can you identify? Use Excel's IRR function and the Guess option to identify the IRRs. Under what circumstances is this a good project? (12 points) Year 0 1 2 3 4 5 6 7 Cash flow -100,000 500,000 -600,000 80,000 80,000 80,000 80,000 -2,000,000 Year 8 9 10 11 1213415 Cash flow 680,000 680,000 680,000 680,000 680,000 680,000 680,000 -2,900,000