1. Open the China Merchants Bank APP and enter the "My" page.
2. On the My page, click the Account option, and then click Transaction Details.
3. On the "Transaction Details" page, find the revenue and expenditure record to be deleted, and then click the "Delete" button on the right side of the record.
4. In the pop-up prompt box to confirm deletion, click OK to delete the revenue and expenditure record.