ED and Financial Aid?

<p>I'm an international student from China. I absolutely love Penn's Wharton School, and I am thinking of applying ED. However, due to my family's financial situation, I will need a substantial amount of aid (probably at least two-thirds of tuition). </p>

<p>My question is this: If on the off chance I get in ED and the financial aid package isn't sufficient, will I be able to back out? </p>

<p>Thank you in advance!</p>

<p>yes, but it is highly unlikely, I was at Penn the other day and they mentioned this situation occurring only once every two years or so.</p>