Recalculating Line Item Amounts When the Tax Code Changes
When you change the tax code on a line item, the system recalculates the amounts depending on the order of the columns on the form.
If the Amount column is before the Gross Amt column, then whenever you change the tax code on the line item, the system updates the value in the Gross Amt column based on the tax rate of the selected tax code. The value in the Amount column does not change.
If the Amount column is after the Gross Amt column, then whenever you change the tax code on the line item, the system updates the value in the Amount column, based on the tax rate of the selected tax code. The value in the Gross Amt column does not change.
For information about rearranging the order of the columns, see Configuring Fields or Screens.