Final answer:
When column totals are not matching on a worksheet, one should calculate and check the difference to find and correct any errors. Ignoring or starting over will not address the issue, and seeking help from a colleague may be necessary if one cannot resolve it alone.
Step-by-step explanation:
When two column totals on a worksheet are not in balance, the appropriate action is to calculate and check the difference. This involves reviewing the numbers entered in each column, ensuring that addition and subtraction operations were performed correctly, and confirming that all transactions have been recorded accurately. If the totals still do not match after checking, further investigation is required to identify and correct any errors. Starting over with a new worksheet or ignoring the discrepancy is not recommended as this will not resolve the underlying issue. If you are unable to rectify the imbalance on your own, requesting assistance from a colleague can be a helpful step.