2/24/2018 S-1 Table of Contents for work on an individual plan, collectively totaling approximately 80% of paying users. As of December 31, 2017, approximately 92% of Fortune 500 companies had paying Dropbox users within their organization, and approximately 56% had at least one paying Dropbox Business team. We had more than 300,000 paying Dropbox Business teams as of December 31, 2017. Each Dropbox Business team represents a separately billed deployment that is managed through a single administrative dashboard. Each team must have a minimum of three users, but we also serve teams that can have more than tens of thousands of users. Customers can choose between an annual or monthly plan, with a small number of large organizations on multi­year plans. A majority of our customers opt for our annual plans. We typically bill our customers at the beginning of their respective terms and recognize revenue ratably over the term of the subscription period. International customers can pay in U.S. dollars or a select number of foreign currencies. https://www.sec.gov/Archives/edgar/data/1467623/000119312518055809/d451946ds1.htm 66/235