TTM20172016201520142013
Avg sales per store (M)$3,423$3,677$3,908$4,235$4,566$4,945
Avg sales per store growth-10.6%-5.9%-7.7%-7.3%-7.7%-2.0%
Avg sales per square foot$294$316$336$366$400$428
Avg sales per square foot growth-10.8%-6.0%-8.1%-8.5%-6.6%0.2%

Notes:Calculated based on reported selling square footage and company-provided figures that selling space in the average store comprises approximately 77.5% of total square footage