Explore strategies for justifying the addition of multiple languages to your website through ROI calculations in this 20-minute conference talk from the Drupal Association. Discover how to build a compelling case that goes beyond market expansion and inclusivity arguments by developing a comprehensive model showcasing costs and potential profits for each additional language. Learn to identify common arguments for and against language expansion, understand the core components of an ROI model for multilingual support, and prioritize language additions effectively. Gain valuable insights to help convince stakeholders of the financial benefits of expanding your site's linguistic reach, both internationally and domestically.