You can enable the discount on the full amount. To do so, we have a setting “Apply discount when pay in full choosen”. To enable this setting, go to WooCommerce >> Settings >> Products >> Deposit page. There we have a setting as shown below.

When the above setting is enabled, it will apply the discount amount which is set when full payment is chosen instead of the deposit payment.

Discount % of total order amount:

Suppose 5% is set as the discount percentage when full payment is chosen and if the product amount is 500 then by selecting the full payment on the product page and adding the product to that cart, the total payable amount would be 475 i.e 500*5%=475 on the cart and the checkout page.

Discount Text to Display:

The text which the user wants to show on the product page or on the cart/checkout page when the discount is applied to the full amount will be shown on that particular page with the setting “Discount text to display”. Suppose, we have set the text “5% discount if paid in full”, then that text will be displayed on the product page as shown in the screenshot below.