A Dollar for a Change

You and your parents are wandering inside a department store of a mall. You found an interesting item (whatever item it is) and you want to buy it. The price of that item is $97. You borrow $50 to your father and $50 to your mother in total of $100 enough to buy an item worth of $97. After claiming the item and $3 for the change. You give $1 to your father and $1 to your mother and the remaining debt is $49 each, a total of $98 and $1 left in your hand in total of $99. If you subtract it from $100 as the total borrowed money to buy that item will be $1.

Where did $1 go???