A macro that enters "xx" next to a cell that is a non-zero value

Hello All,
I would like some VBA language that will enter "xx" if the value in the adjoining cell is a non-zero number.
As you can see in the result tab, if the "number" cell is zero then the "amount" cell remains zero.
If the "number" cell is not zero, then the adjoining amount cell is replaced with "xx".
If you have any VBA language that would be of assistance, I would be most appreciative.

Best,
Andrewstupendo

I would like to use VBA language instead of a formula so that I don't have to add more columns to a spreadsheet that already has many columns.

Hello Jolivanes,
Thank you for the VBA language which worked perfectly.
Unfortunately, my example I left out some important information for which I apologize.
I am now sending you an accurate version of what I have in mind. You will notice in the initial state tab that some of the amounts in column B are greater than zero.
The result tab shows that the macro should only enter "xx" if the cell in column B is zero, but the adjoining cell in column A is greater than zero.
I have attached a new example spreadsheet for your review. Once again, my apologies.

Best regards,
Andrewstupendo