| 我有两道练习题,请帮忙解答一下 1.which income statement colimnsof the extended trial balance should the balance for sales return and purchase be extended ? A debit debit  B debit credit   C credit debit D credit credit  2.after completing final acounts ,the compay found that their understrated a prepayment . how are the company's net profit and capital affected by the correction of the error ? A increased increased   B increased decreased   C decreased increased  D decreased decreased 请帮忙解答 ,最好能具体一点  万分感激  |