At the beginning of this month, the balance of nelson's checking account was $523.12. so far this month, he has received a paycheck via direct deposit of $348.30, been charged a monthly service fee from his bank of $10.00, used a debit card linked to his account to make a purchase of $32.37, written a check for $114.86 that has already been deposited, and deposited a check written to him for $25.00. what is the current balance of nelson's checking account