In the process of reconciling its bank statement for January, Maxi's Clothing's accountant compiles the following information:
Cash balance per company books on January 30 $5,925
Deposits in transit at month-end $2,040
Outstanding checks at month-end $640
Bank service charges $37
An NSF check returned on a customer account $620
The adjusted cash balance per the books on January 31 is: ___________
