CALCULATE is the most powerful DAX function as it allows to manipulate the filter context at your will, like in the case of time-intelligence calculations. Yet, the function is not easy to understand unless its full algorithm is completely clear. In this session the algorithm will be disclosed together with a set of examples of increasing complexity with the aim to reach a complete, yet guided and gradual, understanding of the CALCULATE function. At the end of the session a full picture of CALCULATE will be in the participants' hands.