If you withdraw part of your money from a certificate of deposit before the date of maturity, you must pay an interest penalty. Suppose you invested $7000 in a one-year certificate of deposit paying...

If you withdraw part of your money from a certificate of deposit before the date of maturity, you must pay an interest penalty.

Suppose you invested $7000 in a one-year certificate of deposit paying 8.1% interest. After 6 months, you decide to withdraw $7000. Your interest penalty is 3 monthssimple interest on the $7000. What interest penalty do you pay
?

(Round your answer to two decimal places)