Search for the investment or how to choose an investment project. The choice of investments, how to calculate the risk and calculate the cost of the project with a small deviation from the actual implementation? Many of these issues are constantly worried about the investor. The financial viability of the project, with the same project with the same data in different ways influence the choice of the investor. Suppose we have a project, good looking project, and we create a business plan hope all performance indicators, but when receiving the result, we get different results for the project owner, the investor of the project, and project manager, because the business plan alone, but the views on project are different. For example, the project owner pays attention to the net income minus the project equity, dividends, interest payments and so on, because the owner of the project are interested in earnings, which he will receive for the project, as well as looking at a project lender, investor? An investor invests money in a project looking at the internal rate of return because it is the interest that he can recapture from project, if we assume an investor comes to the company and begins to offer investors a profitable business, the percentage that an investor wishes to receive from the project, of course, comes from the internal rate of return for this course investor, because the internal rate of return – is the highest percentage generated by the project, that the investor is well, then the owner is not good. Investor pays attention to the overall project generated cash flow, it must know where he can at any moment to take money and leave the project, leaving the project on their own. This is one of the types of project risks, the views on the project from all its members are different, and this point must keep in mind.