This year Luke has calculated his gross tax liability at $1,900. Luke is entitled to a $2,550 nonrefundable personal tax credit, a $1,575 business tax credit, and a $650 refundable personal tax credit. In addition, Luke has had $2,425 of income taxes withheld from his salary.

What is Luke's net tax due or refund?

Note: Input the amount as a positive value.