Mario uses the Filing Status of Head of Household for 2022. His taxable income is $21,400 and none of it qualifies for a preferential tax rate. He qualifies for $4,500 of non-refundable credits and $800 of refundable credits for the year. He had $1,900 of federal income taxes withheld from his wages. What is the amount Mario will owe or what is his refund for the year? (enter any amount due as a positive number; enter a refund as a negative number)