Bank is a credit institution that has the role of financial intermediation. The main goal of the bank is to collect deposits from those with surplus funds and place or allocate them to entities with a lack of funds. When performing the mentioned operations, the bank profits from the difference between the active and passive interest rate. Seen from an economic perspective, the role of banking is inevitable, and the state of the economy is clearly reflected in the operations of banks. Banks have never been faster, more dynamic and more susceptible to change than they are today, and the main cause lies in the modernization, informatization and globalization of modern society. The main goal of every commercial bank is to maximize shareholder wealth and achieve a satisfactory level of profitability for all stakeholders. This paper will present a comprehensive analysis of the bank and the banking system using internal and external business performance indicators. An analysis of the commercial bank's business performance will be presented using various methodologies of financial indicators. The paper will seek to facilitate the identification of factors that should lead to an increase in value of the specific bank as well as the banking system. In order for a bank to operate successfully, it is necessary to successfully manage all banking categories, both inputs and outputs. The bank's users are enabled to make simpler business decisions and value management based on information on market values and the bank's positioning. The analytical part of this paper refers to the application of the mentioned external theories and internal indicators to Zagrebačka banka. Internal and external analysis shows in detail the success of Zagrebačka banka's operations in a certain period of time.