Final answer:
Mr. Perera's leadership style changed from a laissez-faire approach to a democratic one, focusing on consensus and group decision-making over time.
Step-by-step explanation:
From the behavioral leadership perspective, Mr. Perera's leadership style changed over time from a more authoritarian approach to a more democratic approach.
An authoritarian leadership style is characterized by issuing orders and assigning tasks, which Mr. Perera initially displayed.
However, over time, Mr. Perera transitioned to a more democratic leadership style, which involves encouraging group participation in decision making and building consensus before taking action.