Penn uses all of the financial information that you and your family submit on the FAFSA, CSS Profile, and any supporting documents (tax returns, etc.) to determine your Expected Family Contribution (EFC). Penn then compares your EFC to your cost of attendance, which represents the full cost of attending Penn for a year. Your financial need is the difference between your cost of attendance and your EFC. Penn meets your full demonstrated financial need with grant funding and work-study.