A payment of $727.50 was made on May 7 on an invoice totalling $3,000.00 dated April 27 with terms 3/10, 1/15, n/30. What amount is still owed?

Invoice

A document issued by a seller to a buyer that lists products or services provided along with the total amount due for payment.

Terms

Conditions and stipulations under which agreements and contracts are made, outlining the obligations of involved parties.