After a decade of studying the strategies of top-performing restaurants, I’ve come to realize that restaurants are getting distracted by data. Sixty-six percent of restaurants use more than four tech systems, each with its own reports and data to sift through. But, rather than getting stymied by vanity metrics like social media followers or lost in POS reports, restaurants should focus on the three numbers that actually determine whether sales grow or stall: guest acquisition, visit frequency, and average check size.