In 2015, Canadian Tire reported sales revenue of $12,279.6 million, cost of goods sold of $7,747.1 million, and net income of $735.9 million. In 2014, it reported sales revenue of $12,462.9 million, cost of goods sold of $8,033.2 million, and net income of $639.3 million. Calculate the gross profit margin and profit margin for each year. (Round answers to 1 decimal place, eg. 5.2%) 2014 2015 Gross profit margin Profit margin