mass price update
Prestashop MassPriceupdate-Plus Module
MassPrice update is a module that allows you to change the price of its products by selecting them by category. The module also allows you to change the prices of products with combinations With this module, you can apply price changes to all products in your store, or only for products in selected categories. For example, you can increase in a 10% all the products of your store, or apply a reduction of $5 to products in selected categories...