Dave's 80/20 rule suggests what percentage of financial success is based on behavior?

The concept behind Dave's 80/20 rule highlights that a significant portion of financial success—specifically 80%—is attributed to behaviors and habits, rather than technical knowledge or expertise. This principle emphasizes the importance of adopting the right financial behaviors, such as budgeting, saving, and living within one's means, which lead to long-term success and wellbeing.

Choosing 20% would imply that only a small part of one's financial success is influenced by behavior, which contradicts the principle that personal choices and habits play a crucial role in determining financial outcomes. Recognizing the dominant effect of behavior reinforces the idea that developing healthy financial habits can have a far-reaching impact on overall financial wellbeing.