Jason and Julie have a joint checking account with a balance of $923.39. During the week, Jason goes to an ATM and withdraws $400. The following week, Julie deposited her paycheck of $1,524.25. Jason then pays bills online in the amounts of: $805.40, $395, $22.43, and $189.45. That same week, they also paid a maintenance fee of $28. What is the current balance in their checking account?