Add a comment to the row with the maximum value

Modify to suit.

You must execute the code again to save those values in the database.
ProductIDNameDescriptionStockMaxStockComment
1ScrewsM5 x 201888
2ScrewsM6 x 201288
3ScrewsM6 x 30988
4ScrewsM6 x 408888This is the max!
5ScrewsM5 x 257788
6ScrewsM4 x 105388