Custom Field to Source Total Amount of Sales Order Rounded to the Nearest Hundredths

1. Navigate to Customization > Lists, Records, & Fields > Transaction Body Fields > New.
2. Set the Type to Integer Number.
3. Unmark Store Value field.
4. In the Applies to tab mark Sale.
5. In the Validation and Defaulting tab > set the default value to:

ROUND({total},-2)
6. Mark the Formula field.
7. Click Save.