Calculating the net costs of checking accounts

Determine the annual net cost of these checking accounts. A "-" sign must precede any negative net cost answers. Round your intermediate calculations to two decimal places.

1. Monthly fee $8, check-processing fee of 15 cents, average of 28 checks written per month. Round the answer to the nearest cent. $
2. Annual interest of 2.5% paid if balance exceeds $500, $7 monthly fee if account falls below minimum balance, average monthly balance $600, account falls below $500 during five months. Round the answer to the nearest cent. $