Xtra Theme, How to add text "M.R.P.:" before the original price?

[Cocoa2]

Need to add text "M.R.P.:" before original price due to compliance issues. But can't find the liquid that i can add text before the original price. Using the theme Xtra. Need help.

[Dan-From-Ryviu]

You can do that by adding this code to Custom CSS in Sales channels > Online Store > Themes > Customize > Theme settings

.price:before {
    content: 'M.R.P.:';
    padding-right: 4px;
}