You are due a tax refund of $590. Your tax preparer offers you a no-interest loan to be paid by your refund check, which will arrive in three weeks. He charges a fee of $70 for this service. What actual 3 interest rate will you pay for this loan? (Hint: The time period for this loan is 3/52 not because a 365-day 52 year is 52 weeks and 1 day, So use days in your computations.)