How is the total due calculated?

The total due is calculated by taking into account the items added to the invoice, their quantities, unit prices, taxes, and any discount applied.

1. Add the products or services to the invoice.
2. Enter the quantity and unit price for each item.
3. If applicable, add the taxes.
4. Apply a discount if necessary.
5. The system will automatically display the subtotal, taxes, discount, and total due.