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. Monthly fee $10, check-processing fee of 30 cents, average of 35 checks written per month. Round the answer to the nearest cent. b. Annual interest of 3.5% paid of balance exceeds $600, 55 monthly fee account fails below minimum balance, average monthly balance 5690, account falls below 3600 during seven months. Round the answer to the nearest cent