Customer is charging commission on the invoice. How can i deduct the commission amount from that particular invoice.

Customer is charging commission on the invoice. How can i deduct the commission amount from that particular invoice.

Hello,
We are selling on e-commerce platforms like amazon, noon etc. We are generating sales invoices on the name of these platforms. At the same time, these platforms charges us 2-3 different kind of charges on each invoice. And after deducting the charges of that particular invoice, the balance amount is transferred to our bank account. How can we show this in zoho books. We have created the invoices successfully but we are stuck at the other part.

For example :
We received an order from Amazon of 100 AED with order ID 1550122.
We made an invoice to Amazon for 100 AED with order ID 1550122.
Amazon charged an amount of 20 AED for Commission and 20 AED for Shipping for order ID 1550122.
Amazon transferred 60 AED to our bank account. (100-20-20) for order ID 1550122
How can we show this transaction in zoho