Fee adjustments can be created to apply to tenancies. Most commonly this would be a discount, but surcharges can also be added.
To add a discount or surcharge navigate to menu Set-Up → Fee Adjustments and click the + button or at the top right corner select 'Add Record':
Click on 'Add' to save your Fee Adjustment.
This can then be applied to a tenant by selecting the necessary adjustment from the drop-down - the total price will automatically update.