On March 1 of the current year, Robbie, a sole proprietor, signed a note for $10,800 to buy a computer for use in his business. Robbie received $9,504 and agreed to pay Bowser's Loans, Inc., $900 a month for 12 months beginning August 1 of the same year. How much interest can Robbie deduct in the current year assuming he made all required payments on time?

$0

$540

$1,080

$1,296