This thesis deals with economic evaluation case study of Ekofarm construction using applications Crystal Ball and Pertmaster Risk Project. The thesis represents the fundamental characteristics of the investment project and methods of its evaluation. There are introduced basic features of both applications on probabilistic risk analysis performed by simulation method Latin Hypercube Sampling. The case study is described in detail including breeding system and method of financing. This is linked to the calculation of economic fundamentals and creation of project cash flow. The result is probabilistic analysis which is output from tested software tools, and its evaluation.