What term describes the percentage of leads that become paying customers?

The term that describes the percentage of leads that become paying customers is best captured by the phrase "lead conversion rate." This metric is critical for businesses as it directly reflects the effectiveness of their sales process and how well they manage to convert interest into actual sales.

Understanding this term is crucial for evaluating how efficiently a business turns potential leads into loyal customers. It helps identify areas of improvement in the marketing strategy, lead nurturing, and the sales approach itself. By focusing on lead conversion rates, companies can optimize their processes, ensuring they not only attract leads but also successfully guide them towards making purchasing decisions.

The other options may relate to broader aspects of customer acquisition or overall conversion metrics but do not specifically focus on the conversion of leads into paying customers. Therefore, "lead conversion rate" is the most accurate term in this context.