This calculator requires the use of Javascript enabled and capable browsers. This script calculates the sales per square foot of selling space (not including storage or invetory space). This is done with an entry to Net Sales and to Total Sales Square Footage. Click on Calculate and see the Sales Per Square Foot. You may click on Clear Values and do another. You MAY enter a decimal for entries in all fields but do not enter any commas or dollar signs (, or $). This is an important figure to most retail stores as square footage is one of the largest overhead costs.