TTM20172016201520142013
Avg sales per store (M)$3,176$3,369$3,657$4,042$4,239$4,362
Avg sales per store growth-9.7%-7.9%-9.5%-4.6%-2.8%-6.0%
Avg sales per square foot$353$377$408$445$473$477
Avg sales per square foot growth-10.3%-7.7%-8.3%-3.9%-0.8%-1.7%

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