Keep a record of changing cell values in a column in Excel

[Gan_77]

I have a column that uses VLOOKUP to bring in values from another sheet. I would like to save the precious value of any cell in this column to the corresponding cell in the next column whenever the cell value has changed.
Example:
Current values: Cell A1=1, A2=2
If VLOOKUP brings a different value now and A1 becomes 2, the old value of A1 which is 1, should get updated in cell B1. Same goes for any cell in column A.
Since this change can happen 4 to 5 times, I would like this to repeat copying the old values from column B to E whenever there is a change so that there is a record of all previous values.
I looked for some solutions and found some involving VBA but they just worked for a single cell, not a row or did not have a way to repeat the tracking a few times.
Appreciate any help in this. Thanks!

 

[sheymyster]

I do believe you'll need VBA for this. The question would be, what is making the values in column A change? Is it something you're doing, or is it another macro? I don't believe there is a way to just monitor/listen to a cell and trigger a macro when it changes, but someone can correct me if that's false and there is. Usually if you want to log a cell value as it changes, you would have the logging functionality built into the macro that is causing the changes, so as it's doing it's thing and changing the value, before it moves on it records what the new value was.

 

[Gan_77]

@sheymyster: It's a VLOOKUP that populates column A from another sheet. This sheet will get updated daily through a manual process. So when this source sheet changes, the value brought in by VLOOKUP also changes. But when such changes occur, I would like the history to be captured in the adjacent rows. Based on my research so far, there are definitely macros that work for this purpose but just that they monitor just 1 cell change not a full column change & its not repetitive to capture multiple changes to this column.