Question: The Cash account of Guard Dog Security Systems reported a balance of $2, 400 at December 31. 2016. There were outstanding checks totaling $700 and a December 31 deposit in transit of $400. The bank statement, which came from Park Cities Bank, listed the December 31 balance of $3, 350. Included in the bank balance was a collection of $660 on account from Wayne Brown, a Guard Dog customer who pays the bank directly. The bank statement also shows a $20 service charge and $10 of interest revenue that Guard Dog earned on its bank balance. Prepare Guard Dog's bank reconciliation at December 31.