A compelling example of the business impact of good UX is the story of a $300 million revenue boost from a simple button change. An e-commerce site faced high cart abandonment due to a mandatory registration form at checkout.

Usability studies revealed that first-time users disliked this forced registration and often left the site. Returning customers also faced issues. 75% who tried password resets failed to complete purchases. By making registration optional and adding a guest checkout feature, the site saw a $300 million rise in annual revenue and a 45% increase in purchase completions. This case underscores the impact of thoughtful and user-friendly design decisions.^[[1]]