ED Acceptance Revoked?

I’m an international student, who was accepted early. I had a 65% grade average throughout my last two years of highschool, and had a predicted 90% grade sent by my school counsellor. I’m expecting my actual end of the year score to be 75-80%. Is this a valid ground for Penn to rescind my acceptance? I’m a full paying student with no financial aid.

That is a big difference. Contact Penn.