East End Hospital has a bank account and is ready to prepare its bank reconciliation on July 31. The July 31 balance on the books is $ 64390 and the balance per the bank statement is $ 61590 . Cash receipts of July 31 amounting to $ 7400 were recorded and then deposited in the bank's night depository. The bank did not include this deposit on its July statement. The bank statement included service charges of $ 130 . Patients had given the hospital some bad checks amounting to $ 7740 . The bank marked them NSF and returned them with the bank statement after charging the hospital for the $ 7740 . The hospital had made no entry for the return of these checks. The hospital's outstanding checks amounted to $ 12470 . What is the total gross amount that will be deducted from the book balance on the bank reconciliation for July 31?