basis points); 

Improved margins due to cleaner closeout inventories (increasing margin approximately 20 basis points); and 

Unfavorable changes in foreign currency exchange rates, including hedges (decreasing gross margin approximately 50 basis points). 

Total Selling and Administrative Expense 

Fiscal 2015 Compared to Fiscal 2014 

Demand creation expense increased 6% for fiscal 2015 compared to the prior year, primarily due to support for key brand and consumer events, including the World Cup in early fiscal 2015, increased digital brand marketing, investments in DTC marketing and higher sports marketing expense. Changes in foreign currency exchange rates decreased growth in Demand creation expense by approximately 4 percentage points for fiscal 2015. 

Operating overhead expense increased 16% compared to the prior year, primarily driven by investments in our rapidly growing DTC business, including new store openings and higher variable expenses, investments in operational infrastructure and consumer-focused digital capabilities and higher performance-based compensation. For fiscal 2015, changes in foreign currency exchange rates decreased growth in Operating overhead expense by approximately 3 percentage points. 

Fiscal 2014 Compared to Fiscal 2013 

Demand creation expense increased 10% compared to the prior year, mainly driven by marketing support for events, including the World Cup, higher sports marketing expense, key product launches and initiatives and investments to upgrade the presentation of our products in wholesale accounts. For fiscal 2014, changes in foreign currency exchange rates did not have a material impact on Demand creation expense. 

Compared to the prior year, Operating overhead expense increased 14%, primarily attributable to growth in our DTC business driven by new store openings, higher personnel costs and e-commerce launches, as well as increased investments in our digital capabilities and corporate infrastructure. Changes in foreign currency exchange rates did not have a material impact on Operating overhead expense for fiscal 2014. 

Other Expense (Income), Net 

Other (income) expense, net comprises foreign currency conversion gains and losses from the re-measurement of monetary assets and liabilities denominated in non-functional currencies and the impact of certain foreign currency derivative instruments, as well as unusual or non-operating transactions that are outside the normal course of business. 

Fiscal 2015 Compared to Fiscal 2014 

Other (income) expense, net shifted from $103 million of other expense, net for fiscal 2014 to $58 million of other (income), net for fiscal 2015, primarily driven by a $147 million change to net foreign currency conversion gains, primarily due to significant hedge gains from available-for-sale investments, as well as an adverse legal judgment in the prior year related to a long outstanding bankruptcy case for a former customer in Western Europe. 

We estimate the combination of the translation of foreign currency- denominated profits from our international business and the year-over-year change in foreign currency-related gains and losses included in Other (income)