I need to design a table where the user will need to approve new values. The table will show him two old values and the gap between the old ones and the new one (The percentage represent the gap from the old value to the new value), if he'll see a suspicious percentage gap he will check the amounts.

Do you have an idea of how to sort the columns for efficient scanning and so it will be clear what the percentage represents?

Table design example

  • If the user is expected to know how to analyse the percentage values then it would imply that user will have had some sort of training for the system. Therefore that training would also include how to read the tables. The point is, while it may not be obvious what the percentages mean to a new person looking at the table, it sounds like this table will only be viewed by people who already understand how to use it. So I don't think it is a problem you need to solve. Personally, based on your brief explanation, the current design is already very clear to me.
    – musefan
    Jul 7 '20 at 11:52

This is a question about input validation. So, do you have any criteria for 'suspicious percentage gap'. If yes, it'll be better not to rely on user mindfullness and alert him about suspicious value. For example, user should check New Value if it is more than 110% of Old Value 1, and more than 250% of Old Value 2. So, you may draw user's attention to New Value itself as well as to Old Value 2 percentage value because it don't pass validation, while Old Value 1 could be displayed in usual manner. I think corresponding color of foreground or background will be enough informative to draw attention.

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