E-commerce in the Asia-Pacific region is expected to rise by 35.7 percent in 2015, according to new figures from eMarketer. With sales hitting $877 billion, the region will be the largest e-tail market in the world. The growth is mostly driven by the rising middle classes in China, India and Indonesia, as well as the increase of shopping via mobile devices. In 2015, digital retail sales in India grew by 129.5 percent, and in Indonesia they jumped by 65.6 percent. As for China, digital retail sales grew by almost 5 percent from 2014. China alone will account for 40 percent of the world's retail e-commerce sales in 2015, and the country is predicted to reach a 55.1 percent share of the global e-commerce market by 2019. The Asia-Pacific region also has the fastest growth of digital retail sales in the world, with an increase more than 10 percent faster than the worldwide average rate. Retail e-commerce sales now represent 10.2 percent of all retail sales in the Asia-Pacific region. This share is expected to rise to 20.4 percent by 2019.