When an offeree changes the terms of an offer, it is called a counteroffer. What happens

to the original offer when a counteroffer is presented?

Original offer becomes void (nothing).

Explanation:

Counteroffer: The original offer would have been either rejected or modified with new one.

This gives the original offeror three options:

accept the counteroffer, reject it, or make another offer.

Example:

When a buyer makes an offer on say "home", there is a possibility of seller can making a counteroffer. In other terms, a counteroffer is one of the negotiating tactic in response to the initial offer. You can call it as business tricks. When a counteroffer is announced, "the original offer goes nothing (void) ".