Every decision-making process ends by making decision. Business decision making can be defined as the choice between two or more versions of problem solving in business situations. Decisions can be made individually and collectively, depending on how many people are involved in taking responsibility for the decision made. Every decision is greatly influenced by psychological aspects. Ethical decision-making refers to personal and organizational values that can often be different. When making decisions, sometimes, it is necessary to neglect personal values and respect the values of the organization in which one operates, because not everyone understands the same things as ethical or unethical. Emotions are considered a key element of rational decision-making and should be recognized in time and learned to manage. Each situation encourages different aspects of an individual’s personality. When making a decision, it is important to see the objective reality. In assignment, the most common mistakes in decision-making are highlighted in order to identify and eliminate them in time. In this assignment, a survey was conducted to see the impact of ethics, emotions, personalities, and perceptions on the decision-making process.