Owen Company's unadjusted book balance at June 30, 2016 is $10,640. The company's bank statement reveals bank service charges of $70. Two credit memos are included in the bank statement: one for $1,100, which represents a collection that the bank made for Owen, and one for $100, which represents the amount of interest that Owen had earned on its interest-bearing account in June. Based on this information, Owen's true cash balance is: