Five key performance indicators (KPIs) include: Revenue Growth: Measures the increase in sales over a specific period. Customer Acquisition Cost (CAC): The cost of acquiring a new customer. Customer Lifetime Value (CLV): The total revenue expected from a customer over their lifetime. Conversion Rate: The percentage of visitors who complete a desired action. Net Promoter Score (NPS): Measures customer satisfaction and loyalty by gauging the likelihood of customers to recommend the business.