S- I/A 'fable of Contents Transaction and processing service fees revenue decreased 1% during the six months ended June 30, 2015 compared to the same period in 2014 as growth in our North America, EMEA, and LATAM regions was more than offset by the impact of foreign currency fluctuations. North America revenue growth was driven by net pricing growth resulting in an increase of approximately $25 million, which includes a timing benefit resulting from certain fee increases which only impacted the first quarter of 2015, partially offset by an incentive payment received during 2014 and a decline in volume of approximately $10 million. On a constant currency basis growth in our EMEA and LATAM regions was driven by volume growth of approximately $25 million and margin improvement of approximately $15 million which were more than offset by the impact of a strong U.S. dollar which negatively impacted revenue growth in our international regions. North America transaction growth in the first half of 2015 compared to the first half of 2014 was driven by growth in our distribution systems. International transaction growth in the first half of 2015 compared to the first half of 2014 outpaced revenue growth due to changes in transaction mix and the impact of foreign currency exchange rate movements. Total product sales and other revenue The following table displays total product sales and other revenue by segment region and illustrates, on a percentage basis, the impact of foreign currency fluctuations on revenue growth. (In millions) Si, month. ended June 30. Percent Change Omstant Currency Percent Change 21)15 2014 North America $ 291 $ 243 20% 20% I3tEA 68 77 (12)% 4% APAC I 1 —% —% LATAM 3o 26 15% 30% Total product sales and other revenue $ 39( ) $ 347 12% 17% Product sales and other revenue increased 12% during the six months ended June 30. 2015 compared to the same period in 2014. due to a $32 million growth in equipme