By Tony Owusu PayPal is expanding its return program, both digitally and physically. Global online retail sales totaled $4.9 trillion last year with a forecast to grow over 50% within the next for years, according to Statista. The majority of those dollars came through mobile avenues. In 2021, $3.56 trillion in e-commerce sales were made from mobile users. E-commerce sites have been optimizing their mobile experiences to increase online sales, and their efforts are working. A survey from Shopify suggests that retailers are seeing revenue from digital sales that are almost equal to their physic…