At the beginning of this month, the balance of clayton's checking account was $337.55. so far this month, he has received a paycheck via direct deposit of $687.22, been charged a monthly service fee from his bank of $15.00, used a debit card linked to his account to make a purchase of $62.11, written a check for $88.14 that has already been deposited, and deposited a check written to him for $175.00. what is the current balance of clayton's checking account?