In the bottom of the Currencies site, you get to decided whether or not you want to display the price Mark-Up to your customers.
The Mark-Up is how much your Retailers earn for a specific product compared to the price they pay you.
Example: if a Retailer purchases a product from you for 100 and the RRP (Recommended Retail Price) is 200, then the Mark-Up is 2.
Showing the Mark-Up to your Retailers can be very motivational for them, and make them consider purchasing new products from your product line.
When it is not ticked, the Mark-Up display is deactivated in your shop.
Conversely, when it is ticked, the Mark-Up display is activated in your shop.