Correct this:

The following information is available for Trinkle Company for the month of June: 1. The unadjusted balance per the bank statement on June 30 was $81,500. 2. Deposits in transit on June 30 were $3,150. 3. A debit memo was included with the bank statement for a service charge of $40. 4. A $5,611 check written in June had not been paid by the bank. 5. The bank statement included a $950 credit memo for the collection of a note. The principal of the note was $900, and the interest collected amounted to $50. Required Determine the true cash balance as of June 30. (Hint: It is not necessary to use all of the preceding items to determine the true balance.) True cash balance $ 79,949