In a hypothetical case an offeree is selling a something for $100. The offeree has met with an offeror who has offered them $100 and the offeree accepts his offer. In this case since this is a bilateral contract it would now be binding for the both parties to complete the transaction. However, after the accepting of the offer the one who has bought the product decides he actually wants it for $80 dollars. What is a possible contract remedy that could be used in this case by the offeree, some that come to mind to me would be expectation damages or specific performance. Is there any other remedy that would fit this case better?