Problem: Copying the result from a formula field as a numeric value and not the formula. For example if your calculating the combined total of 2 fields and you then want to copy that result for use elsewhere. If you simply use copy and paste what you actually copy is the formula that you’ve used to get the result.
Solution: Use copy paste-special the results onto another worksheet. In the paste-special options there should be lots of values and tick boxes. If you untick the option for ‘formula’ when you paste it should just be the result without the formula.