You can use Audit Trail to track changes on the Payment Terms setting. Use Data Query to run a report against the auditsettingchangeevent Audit Trail table to retrieve the records.

To retrieve the setting changes records, submit a data query through UI or API with the following SQL query:

SELECT username      AS UpdatedBy,
       action        AS Action,
       settingtype   AS SettingType,
       attributename AS Attribute,
       oldvalue      AS OldValue,
       newvalue      AS NewValue,
       timestamp     AS Timestamp,
       SettingObjectName
FROM   auditsettingchangeevent
WHERE  namespace <> 'UserManagement'
AND    settingtype = 'PaymentTerm'
ORDER  BY timestamp DESC
LIMIT  100000