Rainey Company's true cash balance at October 31 is $5,710. The following information is available for the bank reconciliation:
a. Outstanding checks, $600
b. Deposits in transit, $450
c. Bank service charges, $90
d. The bank had collected an account receivable for Rainey Company, $1,000
e. The bank statement included an NSF check written by one of Ramsey's customers for $600.
What was the unadjusted book balance at October 31?