This guide assumes you are in Scheduler. From your Market Dashboard, select the "Scheduler" button in green.
Select the vendor pertaining to the price override.
Select the vendor, click "Edit."
Find the date you need that pertains to the price override.
Highlight the entire column.
Right click on your mouse (for cell phone/tablet users, hold your finger down for a few seconds until the menu box pops up). Select "Modify Price."
Make sure "Space Pricing" is selected. Update the price to reflect the amount you want to charge. Hit "Save" when finished.