Users can set up price book in the backend portal using this guide.
Single Price Book Applicable
If only 1 price book is applicable for the product, the pricing will be applied directly.
Cashier View
Customer View
Multiple Price Books Applicable
If 1 product has multiple price books, cashier can select which price book to apply.
In this case, the highest price was selected.
Cashier View 
Customer View
If the lowest price was selected, the price will also be reflected as such.
Cashier View 
Customer View
