Your best friend invested in a project with an initial cash flow of 2400 dollars.

Your best friend invested in a project with an initial cash flow of 2400 dollars. The first-month business was booming, and he was able to bring in $ 2800, however, on second month the machine he invested in broke down costing him $ 800 in repairs. Knowing that you are in a finance class your friend called on your expertise in helping him to figure out what is the project's internal rate of return at two months point. He wants you to numerically show that his project can result in two possible IRR.  (Show your work, Excel will not work 100%)