To show a crossed-out price in Odoo e-commerce website, follow these steps:
To demonstrate the crossed-out prices, we use this demo product with a regular price of 100 USD.
Before price settings, the product page shows the price that way:
Pricelist Configuration
On the beginning, check that your website pricelist is available on your website, and it's placed on the top in the list of price lists.
Next, add or configure rules in this pricelist that match to one of the following conditions:
Discount for products
The product page with the crossed-out price:
Formula with a discount, based on the Sales Price
The product page with prices:
Formula with a discount, based on other Pricelist
The product page with prices:
The discounted price logic was rebuilt in the latest Odoo releases, but with this guide you can configure prices and display the both of your product price types on product webpages and in your e-commerce product list.