On September 1, 2020, Coffee Ltd. issued a $ 1,800,000, 12% note to Humungous Bank, payable in three equal annual principal payments of $ 600,000. On this date, the bank's prime rate was 11%. The first payment for interest and principal was made on September 1, 2021. At December 31, 2021, Coffee should record accrued interest payable of ?