Let’s look some settings:
- Don’t modify product price on product page. This parameter allows you to disable the discount on the product page.
When the checkbox is turn off:
When the checkbox is turn on:
- Show On Sale badge for Simple product if price was modified. This parameter doesn’t work in the pair with the “Don’t modify product price on product page” option.
If you have problems with these parameters, you can see a possible solution here.