Which of the following is an indicator of a store’s effectiveness?

Traffic Conversion stands out as a key indicator of a store's effectiveness because it directly measures how well a store converts foot traffic into sales. This metric reflects the ability of the store to engage customers who enter and persuade them to make a purchase. A high traffic conversion rate indicates that the store effectively appeals to its customers, offering a compelling shopping experience, appropriate product selection, and effective sales tactics.

Understanding traffic conversion can inform management decisions, such as staffing needs or promotional strategies, by identifying how well the store is performing relative to customer engagement. In contrast, while factors like the number of staff members, store layout, and advertising spend certainly play important roles in overall store operations and performance, they do not provide a direct measure of how successful the store is in transforming visits into sales. Traffic conversion encompasses the impacts of all these factors, thereby serving as a comprehensive metric for effectiveness.