|Once again, you have a posted a unclear requirement.|
i.e. "A1 row: =A2-A1. the inserted A2 row: =A3-A2"
First, A1 and A2 are not rows, A1 and A2 are cells. I don't know what you mean by "A1 row" and "A2 row"
If you mean the cells A1 and A2, then you have another problem. You can't have =A2-A1 in A1 or =A3-A2 in A2.
That will cause a circular reference since you are asking Excel to calculate a value using a value from the same cell in which you want the answer. That can't be done.
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