This is a numeric field type. Its main use is to capture a number to then display it as a percentage. Great to use if you want to capture the commission percentage of an Opportunity or a discount for all new sales.
Configuring a Percent Field
Give your field a name and add a field hint if desired. You can then select the section in which the field will be created or keep the default option.
The field type must be set to 'Percent'.
If desired, you can set a default value for all new records. Team members will have the option to override the default value if needed.
It could be used to set at a 10% discount on all new Opportunities by default, however, each sales rep will have the option to change it to a higher discount or remove it from the Opportunity.
Number fields can also be calculated. Just enable the 'Calculated' checkbox and add your custom code in the space available for it.
Enable the 'Required' checkbox if the information for this field is mandatory. It means that if you enable this option, every time a team member creates a new record, they will need to input a number for this field in order to save it.
If you enable the 'Lock After Create' as its name implies, the field will be locked once the new record is saved and the value of the field will not be editable afterward.
Once you are done setting your field, click the save button.
Note: All new fields are added at the bottom of the form.