• Go to the settings -> General Settings -> Invoicing menu.

• Here you can configure "Sales Discount Account" and "Purchase Discount Account".

• Go to the Sales -> Orders Menu.
• You can find "Discount Type" option here you can select discount type as "Percentage" or "Fixed" type and give the "Discount Rate". "Net Total" will be the final total after deducting the discount.

• From Sale Order when you create Customer Invoice, fields values like "Discount type" and "Discount Rate" will go in Customer Invoice and calculate discount value.

• When you validate Customer invoice, "Journal Entries" will also have the debit and credit records with reference to the total and net total i.e. after calculating discount.

• Go to the Purchase -> Purchase Orders menu.
• You can find "Discount type" option here you can select discount type as "Percentage" or "Fixed" and give the "Discount Rate". "Net Total" will give you final amount with deducted Discount.

• From Purchase order when you create Vendor Bill, fields values like "Discount type" and "Discount Rate" will go in vendor Bill and calculate discount value.

• When you validate vendor Bill,Journal Entries will also have the debit and credit record's with reference to the total and net total i.e. after calculating discount.

• Purchase, Sales and Invoice reports also includes discount fields values like "Discount type" and "Discount Rate".

• Sales Order Report.

• Customer Invoice Report.

• Purchase Order Report.

• Vendor Bill Report.