please explain to me how to find what i have wrong. dont just tell me the answer please. Thank you!

The adjusted trial balance columns of the worksheet for DeSousa Company are as follows DESOUSA COMPANY Worksheet (partial) For the Month Ended April 30, 2015 Adjusted Trial Balance Account Titles Dr 10,508 7,049 2,497 22,864 Cash Accounts Receivable Prepaid Rent Equipment Accumulated Depreciation-Equip Notes Payable Accounts Payable Common Stock Retained Earnings Dividends Service Revenue Salaries and Wages Expense Rent Expense Depreciation Expense Interest Expense Interest Payable 5,348 5,638 4,759 19,657 7,440 3,750 15,872 10,656 729 661 56 56 Totals 58,770 58,770