Hotels have the option to enable sorting by price on the Rooms & Rates page. Below is an example of how it would appear on the booking engine. 

Sorted by Price:

Sorted Random:

Instructions 

Step 1: On the Extranet, under the Booking Engine tab select on General Settings

Step 2: Select on Booking Engine Settings

Step 3: Under Enable Sorting by price for Rooms & Rates page: make your selection and be sure to Save when finished.