Percentage Attribute Type

We would like the ability to show an Attribute as a percentage. Right now you can only show it as a number and then you have to convert it to a custom field and make it a percentage. This duplicates values in the already messy Information section. This is critical as we have NPS (which is not a percentage) and CSAT (which is a percentage) and our team gets them confused regularly. Thus, not being able to show CSAT as a percentage will continue to contribute to that confusion. Also this seems like a basic functionality.