The bank statement for Tetra Company contained the following items: a bank service charge of $10; a credit memo for interest earned, $15, and a $50 NSF check from a customer. The company had outstanding checks of $100 and a deposit in transit of $300. Assuming that the unadjusted bank balance was $500, determine the unadjusted book balance. $745 $455. O $700. O $800