The following information is needed to reconcile the cash balance for Discount Dry$$ Cleaning, Inc.

$*$ A deposit of$$ $$5,800$ is in transit.

$*$ Outstanding checks total$$ $$1,100.$

$*$ The book balance is$$ $$6,400$ at February$28,2025.$

$*$ The bookkeeper recorded a$$ $$1,600$ check as$$ $$17,300$ in payment of the current$$ month's rent.

$*$ The bank balance at February$28,2025$ was$$ $$17,510.$

$*$ A deposit of$$ $$400$ was credited by the bank for$$ $$4,000.$

$*$ A$$ customer's check for$$ $$3,400$ was returned for nonsufficient funds.

$*$ The bank service charge is$$ $$90.$

What was the adjusted book$$ balance?