The document discusses calculating gross profit percentage from financial statements. Gross profit percentage is calculated as gross profit divided by sales multiplied by 100. It provides examples of calculating gross profit percentage for the Gaelic Athletic Association (GAA) and Corrigan's Fuel Service from their 2011 and 2012 financial statements. While the GAA's gross profit percentage increased from 40% to 50% from 2011 to 2012, Corrigan's declined from 44% to 33% over the same period.