Can the sales icon show the actual percentage amount?
By default, the sales icons do not display the percentage off. However, if you are using a vintage theme, you can add custom code to display the discount percentage. This customization requires knowledge of Liquid code. If you are not comfortable working with Liquid code, you can request a paid customization from one of our trusted partners.
See the steps on how to customize this yourself here: https://support.boldcommerce.com/hc/en-us/articles/360045010251-Customization-Styling-in-Bold-Discounts#show-the-discount-percentage
Reach out to our trusted partner at StoreExperts here: https://app.shopexperts.com/client/new-project