The Sc App interface allows you to modify product prices in bulk, using two different methods, depending on what you want to do.
1. If you want to apply the same price value onto multiple products, you can then use the copy/paste option.
Modify the price on a first product, right click the new value to display the popup menu, and select 'copy'.
Then select all other products, right click again on the price value, and this time select 'paste'.
You'll find detailed steps in the article below.
2. If you need to apply a price increase, with an amount or a percentage, then you can use the mass update option, also located in the popup menu.
For this method, refer to the article below where the steps are explained in details.