You are not allowed to save it to next year. To report it, you have to file an amended return.
That said, I do NOT recommend that you bother with an amended return. At worst, you owe the IRS $75. The difference between box 5 and box 1 is not automatically taxable. If you spent that $746 on other qualified expenses (books, fees, software or other course materials) it is not taxable. You are highly unlikely to hear from the IRS about this.
