Correct column order of comparison data table

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?