Your firm has an outstanding loan from your bank in the principal amount of $200,000 with interest payable monthly, based on the number of days outstanding, at the daily rate of 0.02%, compounded annually. You are closing the books for the month of April and note that, during April, you paid interest due for the month of March (31 days) in the amount of $1,500. You have not yet received an invoice from the Bank showing the amount of interest due for the month of April. Under the accrual method, what is your interest expense for the month of April?