Which metric would be considered a KPI for a retailer?

Sales per square foot is regarded as a key performance indicator (KPI) for a retailer because it directly relates to the efficiency and productivity of a retail space. This metric measures how much revenue a retailer generates for every square foot of selling space. It allows retailers to evaluate their performance, optimize store layouts, and make informed decisions about inventory and product placement. A higher sales per square foot indicates that the store is effectively converting its space into revenue, which is crucial for overall business success.

The other options, while important for various operational aspects, do not directly measure retail performance in terms of sales efficiency. Employee turnover rate is significant for understanding workforce stability but does not necessarily reflect sales performance. Marketing budget allocation is critical for planning and strategy, but it does not provide a direct measure of retail success. Employee training hours are important for workforce development but again do not directly correlate to sales productivity in the retail environment.