need help with the end of 6pb page 137 of Financial and Managerial Accounting, 8th Edition using this form

SAFE STORAGE CO. Post-Closing Trial Balance July 31, 2017 Debit Credit Cash Accounts receivable Office supplies Prepaid insurance Buildings Accumulated depreciationBuildings Salaries payable Common stock Retained earnings Totals Problem 3-6B (Continued)

Ledger as of July 31 Cash Acct. No. 101 Date Explanation PR Debit Credit Balance July 1 Accounts Receivable Acct. No. 106 Date Explanation PR Debit Credit Balance July 31 Office Supplies Acct. No. 124 Date Explanation PR Debit Credit Balance July 5 Prepaid Insurance Acct. No. 128 Date Explanation PR Debit Credit Balance July 10 Buildings Acct. No. 173 Date Explanation PR Debit Credit Balance July 1 Accumulated DepreciationBuildings Acct. No. 174 Date Explanation PR Debit Credit Balance July 31 Salaries Payable Acct. No. 209 Date Explanation PR Debit Credit Balance July 31 Common Stock Acct. No. 307 Date Explanation PR Debit Credit Balance July 1 180,000 180,000 Retained Earnings Acct. No. 318 Date Explanation PR Debit Credit Balance July 31 31 Dividends Acct. No. 319 Date Explanation PR Debit Credit Balance July 31 31 Storage Fees Earned Acct. No. 401 Date Explanation PR Debit Credit Balance July 24 31 31 Depreciation ExpenseBuildings Acct. No. 606 Date Explanation PR Debit Credit Balance July 31 31 Salaries Expense Acct. No. 622 Date Explanation PR Debit Credit Balance July 14 28 31 31 Insurance Expense Acct. No. 637 Date Explanation PR Debit Credit Balance July 31 31 Rent Expense Acct. No. 640 Date Explanation PR Debit Credit Balance July 2 31 Problem 3-6B (Concluded) Office Supplies Expense Acct. No. 650 Date Explanation PR Debit Credit Balance July 31 Adjusting 875 875 31 Closing 875 0 Repairs Expense Acct. No. 684 Date Explanation PR Debit Credit Balance July 29 950 950 31 Closing 950 0 Telephone Expense Acct. No. 688 Date Explanation PR Debit Credit Balance July 30 400 400 31 Closing 400 0 Income Summary Acct. No. 901 Date Explanation PR Debit Credit Balance July 31 Closing 10,950 10,950 31 Closing 8,225 2,725 31 Closing 2,725 0