Exercise 3-4 the following trial balance of sheffield co. does not balance sheffield co trial balance june 30, 2017 debit credit cash accounts receivable supplies equipment accounts payable unearned service revenue common stock retained earnings service revenue salaries and wages expense office expense totals $3,227 $3,588 1,157 4,157 3,023 1,557 6,357 3,357 2,737 3,757 1,297 $15,513 $18,701 each of the listed accounts should have a normal balance per the general ledger. an examination of the ledger and journal reveals the following errors. 1. cash received from a customer on account was debited for $570, and accounts receivable was credited for the same amount. the actual collection was for $750. 2. the purchase of a computer printer on account for $857 was recorded as a debit to supplies for $857 and a credit to accounts payable for $857. 3. services were performed on account for a client for $890. accounts receivable was debited for $890 and service revenue was credited for $89. 4. a payment of $422 for telephone charges was recorded as a debit to office expense for $422 and a debit to cash for $422 5. when the unearned service revenue account was reviewed, it was found that service revenue amounting to $682 was performed prior to june 30 (related to unearned service revenue) 6. a debit posting to salaries and wages expense of $1,027 was omitted. 7. a payment on account for $206 was credited to cash for $206 and credited to accounts payable for $260 8. a dividend of $932 was debited to salaries and wages expense for $932 and credited to cash for $932. prepare a correct trial balance.