Final answer:
A correction journal entry with both debit and credit in the Statement of profit or loss simply reclassifies amounts within the profit or loss statement, without affecting the total profit figure.
Step-by-step explanation:
When the correction journal entry is written as Dr Statement of profit or loss / Cr Statement of profit or loss, this is an internal adjustment within the profit or loss statement. It indicates that an error was corrected by debiting and crediting the same amounts within the profit or loss accounts. This operation does not change the overall profit figure but rectifies the allocation within the profit or loss categories. For example, if an expense was incorrectly classified, this adjustment would move the expense from one category to another without changing the total profit.